---
title: "Java Course for Peru from Zero: Live Online in English"
description: "A Java course from zero for teenagers and adults in Peru, taught live online in English: what you learn and in what order, how long it takes, and class hours."
canonical: https://learn.modernagecoders.com/java-course-peru
source: src/pages/java-course-peru.html
---
> A Java course from zero for teenagers and adults in Peru, taught live online in English: what you learn and in what order, how long it takes, and class hours.

What this is

Java from zero, for learners in Peru: Modern Age Coders teaches it in live online classes in English, with an India-based mentor leading each session as it happens, never a recording. The course starts at the first line of code and climbs through objects, collections, data structures and back-end projects. Teenagers from 13 learn in a teen batch; adults join the university-level course. Pick a batch of fifteen to twenty or private lessons, at whatever hour suits you in Peru; your first class costs nothing.

Choose your course

## Three Java courses, by age and goal

Two start from nothing, one for teenagers and one for adults. The third is where Java learners go once the language feels comfortable.

[![Java for Teens course thumbnail](/images/java-teens.webp)  JAJ / 01 Java for Teens For complete beginners of 13 to 18, over ten to twelve months. Variables and types first, then objects, collections, files and a finished project, at two live classes a week in a teen batch. Open the syllabus →](/courses/java-programming-masterclass-for-teens)[![Java Course for College course thumbnail](/images/java-college.webp)  JAJ / 02 Java, core to Spring Boot For adults of 18 and over, from zero. Ten to twelve months from core Java through object-oriented design and testing to back-end services with Spring Boot. Open the syllabus →](/courses/complete-java-programming-masterclass-college)[![Data Structures & Algorithms Course course thumbnail](/images/dsa-college.webp)  JAJ / 03 Data structures and algorithms Once the basics are solid: lists, trees, graphs, sorting and complexity over ten to twelve months, the foundation of every technical interview. Open the syllabus →](/courses/data-structures-algorithms-masterclass-college)

From zero

## Can you learn Java from zero, with no programming before?

Yes. Java is a reasonable first language for a patient learner, because it is explicit about everything. The price is a little more typing at the start; the reward is fewer mysteries later.

### Teenagers

A pupil in secundaria who wants a serious language, perhaps with university computer science in mind. Java's rules feel fussy for a week or two and then start to feel like a safety net.

### University students

Students whose first programming course uses Java, or who want it before their degree asks for it. Learning it properly, in English, makes every later course in the plan easier.

### Adults changing direction

People moving towards software, back-end development or Android. Java has been used for large business systems for decades, so the ideas it teaches transfer widely.

If you are deciding between Java and Python as a first language, either is a good choice; what matters more is a course that makes you think. Our Spanish page [curso de Java en inglés](/curso-de-java-en-ingles-peru) compares the two for Peruvian learners, and the [curso de Python en inglés](/curso-de-python-en-ingles-peru) covers the other path. Whichever you choose, the classes are taught in English.

Learners join a batch of people at a similar stage, or learn one to one. Each class is live: the mentor explains, the learner types, and when something does not compile, they read the error message together, in English, and fix it. Those error messages are some of the best English reading practice a programmer gets.

Java's types

## What does Java promise about numbers and types?

Exactly what its specification says. The Java Language Specification fixes the size and range of every primitive type, so a Java `int` holds the same values on a laptop in Lima, a server in India and a phone anywhere else.

| Type | What it is | Values it can hold |
| --- | --- | --- |
| byte | 8-bit signed integer | -128 to 127 |
| short | 16-bit signed integer | -32,768 to 32,767 |
| int | 32-bit signed integer | -2,147,483,648 to 2,147,483,647 |
| long | 64-bit signed integer | -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 |
| char | 16-bit unsigned integer for text units | 0 to 65,535 |
| float | 32-bit IEEE 754 floating point | binary32 values |
| double | 64-bit IEEE 754 floating point | binary64 values |
| boolean | Truth value | true or false, nothing else |

Source: Oracle, The Java Language Specification, Java SE 21 Edition, chapter 4 "Types, Values, and Variables", sections 4.2 to 4.2.3, read on 9 November 2026. Thousands separators are added for reading; the specification prints the numbers without them.

### Why a beginner should care

In Java you declare a type, and the compiler holds you to it. Try to put a decimal into an `int` without saying so and the program will not compile. Many beginners find this annoying for a fortnight and grateful for years.

The table also shows the limits. An `int` stops at 2,147,483,647, a little over two billion. That sounds huge until you count milliseconds, money in cents or the population of a country over time.

### The sentence that surprises people

The same chapter of the specification says: "The integer operators do not indicate overflow or underflow in any way." In plain English, if an `int` calculation goes past its limit, Java does not stop or warn you. It wraps round and carries on with a wrong number.

That one sentence is the reason for the lesson further down. Java is strict about types, but silent about overflow, and a good programmer has to know both facts.

Course order

## What do you learn in a Java course, and in what order?

A Java course from zero follows a fixed ladder, because each step depends on the one before it. These are the stages of our Java courses for teenagers and adults; the projects differ by age, the order does not.

1. **Setting up and a first program.** Installing a current JDK, writing `main`, compiling and running. Learners meet the compiler's error messages on day one and learn to read them calmly.
2. **Types, variables and operators.** The table above, in practice: choosing `int`, `long`, `double` or `boolean`, and the overflow lesson on this page.
3. **Decisions and loops.**`if`, `switch`, `for` and `while`, with problems checked by hand first.
4. **Methods.** Splitting a program into named pieces with clear inputs and outputs, and testing each one.
5. **Classes and objects.** The heart of Java: designing classes, constructors, encapsulation, then inheritance and interfaces once the basics are steady.
6. **Collections and generics.** Lists, sets and maps from the standard library, and choosing between them.
7. **Exceptions, files and testing.** Handling failure on purpose, reading and writing data, and writing tests that catch bugs before users do.
8. **A real project.** For teenagers, often a game or a school tool; for adults, a back-end service with a database. Every learner explains their project, in English, to their mentor.

### How long from zero

Our Java courses for teenagers and for adults each last ten to twelve months, with two live lessons weekly and practice in between. A complete beginner who searches for a quick course usually finds one that stops at step 4; the stages after that are where Java becomes useful.

Learners racing a date, for example a programming course that begins next semester, can speed up with private lessons.

### Which Java version

We teach on a current long-term-support JDK. JDK 21, used to compile and run the lesson on this page, reached General Availability on 19 September 2023, according to the OpenJDK project.

Beginners hardly notice version differences. What matters is installing from an official source and knowing which version you have, which is the first thing we check together.

Java in Peru

## Is Java useful for students in Peru, and is it allowed in the OPI?

Useful at university and at work, but not in the national informatics olympiad. It is worth knowing both before you choose a first language.

### School and the olympiad

Peruvian school has no computing subject: the national curriculum, the CNEB, treats digital skills as a competency shared across subjects. So most teenagers who learn Java learn it outside school.

The Peruvian Informatics Olympiad, OPI, is run by UTEC and free for secundaria pupils. Under its 2025 rules, contestants may write C++ or Python in phase one, and C++ alone in the final. Java is not on the list. A teenager whose main goal is the OPI should learn C++, and we say so plainly; Java remains an excellent language for everything else.

### University and work

Java is widely taught in university programming and software engineering courses, and it powers many business back ends and Android apps. A learner who understands Java's types, objects and collections will recognise the same ideas in C#, Kotlin and TypeScript.

All of Java's official documentation, the specification included, is in English. Learning Java in English means the words in class, in the compiler's messages and in the documentation are the same words.

One practical point: Java needs a real computer to compile and run comfortably. INEI's survey of the second quarter of 2026 found 36.4% of Peruvian households with at least one computer. If yours is shared, tell us when you book and we will choose class hours around it. We are not connected with UTEC, the OPI or any Peruvian university.

A real lesson

## Why does Java say 30 days is a negative number of milliseconds?

Because the answer is too big for an int, and Java wraps round without a word. We teach this early in every Java course, to learners aged 13 upwards.

### The problem

Picture a reminder app that needs the number of milliseconds in 30 days. The arithmetic is easy: 30 days times 24 hours times 60 minutes times 60 seconds times 1,000. The result goes into an `int` and gets printed.

The answer is negative. Then they try the obvious fix, storing it in a `long` instead, and the answer is still the same negative number.

### What is happening

The true answer is 2,592,000,000, which is more than the 2,147,483,647 an `int` can hold. Java wraps past the top of the range, and the result is 2,592,000,000 minus 232, which is -1,702,967,296.

The `long` fix fails because Java works out the right-hand side first, entirely in `int`, and only then widens the already wrong result. **The type of the calculation is decided before the assignment**, not by the variable on the left.

***Milliseconds.java: one wrong answer, one still wrong, one right, one loud**Java*

```
public class Milliseconds {
    public static void main(String[] args) {
        int days = 30;
        int ms = days * 24 * 60 * 60 * 1000;
        long stillWrong = days * 24 * 60 * 60 * 1000;
        long right = days * 24L * 60 * 60 * 1000;
        System.out.println("int:         " + ms);
        System.out.println("long, late:  " + stillWrong);
        System.out.println("long, early: " + right);
        System.out.println("int maximum: " + Integer.MAX_VALUE);
        try {
            System.out.println(Math.multiplyExact(days * 24 * 60 * 60, 1000));
        } catch (ArithmeticException e) {
            System.out.println("multiplyExact: " + e.getMessage());
        }
    }
}
```

Compiled and run with JDK 21, it prints `int:         -1702967296`, `long, late:  -1702967296`, `long, early: 2592000000`, `int maximum: 2147483647` and `multiplyExact: integer overflow`.

The right answer comes from making the calculation a `long` from the start: writing `24L` turns the second number into a `long`, so every multiplication after it happens in 64 bits. The last line shows the other professional tool. `Math.multiplyExact`, part of Java's standard library, throws an exception if the result overflows an int, so a silent wrong number becomes a loud error you can see and fix.

Bugs like this are not exotic. They appear when programs count time, money in cents, views on a video or rows in a database, and they often hide for months because the small test cases work. The habit we teach is to ask, for every calculation, "how big can this get?", and to choose the type before writing the code. The lesson is ours, written for our classes.

1. **Forecast.** Before you press run, note your forecast for every printed line. Then run it and mark which forecasts held.
2. **Find the edge.** Change `days` to 24, then 25. At which number of days does the `int` version first go wrong? Work it out with a calculator before you test it.
3. **Move the L.** Put the `L` on `1000` instead of `24`. Does the answer change? Explain why in two English sentences.
4. **Go loud.** Rewrite the whole calculation with `Math.multiplyExact` on `long` values, and test it with 30 days and with 300 million days.

Thinking, not copying

## Will I learn to think in Java, or just copy code?

To think. The overflow lesson is a good example: the code compiles, runs and prints a number, and only a learner who asks how big the number can get will catch the mistake.

### Ask how big

Before every calculation, learners estimate the largest value it can reach and choose the type to fit. It takes seconds and prevents a whole class of bugs.

### Read the compiler

Java's error messages are precise. We teach learners to read them line by line in English, instead of pasting them into a chatbot and pasting back whatever comes out.

### AI within age rules

Anthropic sets 18 as the minimum age for Claude, and OpenAI asks under-18s using ChatGPT for a parent's permission. Teenagers learn without adult AI accounts; adults may use AI to question their code, never to replace understanding it.

Every learner gets the same standard of teaching, whether they log in from Lima, Chiclayo or Tacna: the same patient explanation, the same insistence on understanding each line, and the same honesty when something is harder than it looks.

Peru times

## What hour would Java classes be in Peru, and in what language?

English only, at an hour of your choosing. Lima's clock sits five hours behind UTC throughout the year and India's five and a half ahead, which puts India a steady ten and a half hours in front of Peru. These rows convert a few hours; they are not set class times.

| Peru time | India time | Often chosen by |
| --- | --- | --- |
| 06:00 | 16:30 | Adults who study before work |
| 10:30 | 21:00 | Students with afternoon classes |
| 15:30 | 02:00, next day | Teenagers after a morning school shift |
| 19:30 | 06:00, next day | Adults in the evening |

Based on the IANA tz database entries America/Lima and Asia/Kolkata, neither of which moves its clocks during the year. We did the conversions.

Mentors teach only in English and match each learner's pace: short sentences, technical words typed into the chat, and each new idea shown on screen before it is used. Learners in the capital who want more about learning in English can read our page on [English-medium coding classes in Lima](/english-medium-coding-classes-lima).

Stages

## Five stages from your first Java program to a real project

Our own stages, used to place learners and to show progress in plain terms.

| Stage | The learner can | Proof of the stage |
| --- | --- | --- |
| 1. Compile | Write, compile and run small programs | Fixes a compile error by reading it |
| 2. Type | Choose types and predict overflow | Explains the milliseconds lesson |
| 3. Structure | Write methods and classes with tests | A small program split into classes |
| 4. Collect | Use lists, sets and maps well | A tool that groups and sorts real data |
| 5. Build | Design and finish a project | A game, app or service explained in English |

### For parents of teenagers

Stage 2 is where careful habits start. A teenager who asks "how big can this get?" is learning to think like an engineer.

Updates describe what was built and understood each month.

### For adult learners

If the compiler complains, read the whole message before changing anything.

A program that compiles is not finished. A program you can explain is.

More courses

## Nine more courses around Java

Each runs live and in English, either with a batch or privately, under a mentor who follows the learner's progress.

I

### Teenagers alongside Java

Ages 13 to 18

JAJ / TEEN / 01

#### Python for teens

The other popular first language, from zero.

[Open the syllabus](/courses/python-complete-masterclass-teens)

JAJ / TEEN / 02

#### C++ for teens

The OPI final's only language, with STL and algorithms.

[Open the syllabus](/courses/cpp-programming-masterclass-for-teens)

JAJ / TEEN / 03

#### Git and GitHub for teens

Version control from the first commit.

[Open the syllabus](/courses/git-github-version-control-course-for-teens)II

### Building with Java ideas

Teenagers and adults

JAJ / BUILD / 01

#### Back-end development for teens

APIs and databases, ages 13 to 18.

[Open the syllabus](/courses/backend-coding-masterclass-for-teens)

JAJ / BUILD / 02

#### Kotlin and Android

Java's close relative, for Android apps.

[Open the syllabus](/courses/complete-kotlin-programming-masterclass-professional)

JAJ / BUILD / 03

#### MySQL and databases

SQL and design for the data behind Java services.

[Open the syllabus](/courses/mysql-database-complete-masterclass-college)III

### Further and deeper

Ages 18 and over

JAJ / DEEP / 01

#### Competitive programming

Algorithms under time pressure, up to contest level.

[Open the syllabus](/courses/competitive-programming-masterclass-college)

JAJ / DEEP / 02

#### Full-stack web development

Front end, back end and deployment.

[Open the syllabus](/courses/full-stack-web-development-masterclass-college)

JAJ / DEEP / 03

#### AP Computer Science A

Java for students on a US-style school programme.

[Open the syllabus](/courses/ap-computer-science-a-java-exam-prep-course)

How classes run

## What a live Java lesson looks like from Peru

Any day, any time, flexible: choose a batch, or for a very personalised plan choose 1-on-1 at the hour that suits your family.

Mornings

Morning in Peru is evening in India, an easy hour on both sides.

Evenings

Peruvian evenings land in the Indian early morning; ask for the hour you need.

1-on-1

A private mentor and hours that move with your week.

### Compile every class

Learners write and run Java themselves, every lesson.

### The same mentor

One teacher who knows where you get stuck.

### Unhurried English

Clear explanations, key terms written in the chat.

### Batches by age

Teenagers with teenagers, adults with adults.

### Short practice tasks

Set in one class and discussed in the next.

### Batch or solo

A batch of fifteen to twenty, or a mentor all to yourself.

Student work

## What our longer-term learners have built

Learners who stay with programming for a year or two build real software. A few projects by our older students are below; the [student labs](/student-labs) page shows more.

![NutriLife AI nutrition coach project screenshot](/images/projects/nutrilife.webp)

AI and ML

#### NutriLife

An AI nutrition coach that reads what you eat and works you toward a target.

by Bhavya · [Open it](https://nutrilife-bhavya.lovable.app)

![Misti AI chatbot for maths and coding screenshot](/images/projects/misti.webp)

AI and ML

#### Misti

A chatbot that answers mathematics and programming questions, built and deployed by a student.

by Harshit · [Open it](https://misti.modernagecoders.com)

![GuardianX AI internet safety assistant screenshot](/images/projects/guardianx.webp)

AI and ML

#### GuardianX

An assistant that helps a young person recognise unsafe situations online.

by Vivaan · [Open it](https://guardianx-cybersaver.lovable.app)

![SkyCast weather forecast application screenshot](/images/projects/skycast.webp)

Web app

#### SkyCast

A weather forecasting site with live conditions for any location.

by Krish

Fees

## Java course fees for learners in Peru

Fees are charged in US dollars on a card. Your bank turns each charge into soles at that day's rate, so the figure on your statement may move slightly from one month to another.

Free first class

Free

no card required

- A free first Java class
- Install a JDK and compile a first program
- No card needed

Book it

Group batch

$100 USD

a month, eight live classes

- Fifteen to twenty learners at a similar stage
- One mentor throughout
- Two live classes a week
- Pay monthly; stop at any month

Start here

One to one

$150 USD

a month, eight live classes

- A mentor just for you
- Projects shaped by your goal
- Hours you choose

Enquire

What families say

## Rated 4.9 across 547 Google reviews

Reviews from Google, quoted exactly as families and students wrote them.

★★★★★

"The one step solution for my son. Modern Age Coders make learning coding so simple that kids love it. The teachers explain complex concepts clearly with practical exercises and interactive content."

Ria Mukherjee

Parent

★★★★★

"Modern Age Coders has been a game-changer for me. I struggled to grasp IT concepts and coding before joining, but their classes transformed everything. I can now confidently write complex programs with ease."

Samriddha Mondal

Student

★★★★★

"One of the most wonderful education centres out there. Education is not limited to school syllabus but focuses on skill development."

Vansh Agarwal

Student

★★★★★

"My child Dhairya is really enjoying the Modern Age Coders classes. This is his first online class and he eagerly looks forward to it. I can already see his improvement, and the teachers are very cooperative."

Sonam Oswal

Parent of Dhairya

★★★★★

"Modern Age Coders have wonderful teachers who teach in a clear, easy and practical way. The teacher boosts students' confidence and inspires them to learn without hesitation."

Sonu Goyal

Parent

★★★★★

"I highly recommend this computer coding class! The teachers are incredibly knowledgeable and passionate about coding."

Ritu Kedia

Parent

Questions from Peru

## Java from zero in Peru: what learners ask

### Are the classes in Spanish?

No. Every Java lesson is live, online and taught in English; we do not teach in Spanish. Mentors keep their speech clear, follow your pace and accent, and put every step on the shared screen. Java's keywords, error messages and documentation are all in English, so the class and the language use the same words.

### Can I learn Java with no programming experience?

Yes. Java for Teens, for ages 13 to 18, and our adult Java course both begin with your very first line. Java asks for a little more care at the start than some languages, and that care pays off later.

### How many months does Java from zero take?

Our full Java courses take ten to twelve months at two live classes a week, plus practice. Short courses often stop before objects and collections, which is where Java becomes useful for real projects. One-to-one learners can move faster.

### Which version of Java will I use?

A current long-term-support JDK, installed from an official source in your first class. The lesson on this page was compiled and run with JDK 21, which reached General Availability on 19 September 2023.

### Can I use Java in the OPI informatics olympiad?

No. The OPI 2025 rules allow C++ or Python in the first phase and only C++ in the final. If the OPI is your main goal, learn C++. We have no tie to UTEC or the OPI, and we promise no medals.

### What time are classes for someone in Peru?

Any day, any time, flexible: choose a batch, or for a very personalised plan choose 1-on-1 at the hour that suits your family. With India ten and a half hours ahead, a 10:30 class in Peru is 21:00 for the mentor.

### Do I get a certificate?

You receive a completion certificate from Modern Age Coders once you pass the final exam. It is ours alone: no Peruvian ministry or university issues it, and it is not a Peruvian qualification.

### Is Java harder than Python?

It asks for more detail at the start: you declare types and write a little more code. Many learners find that this makes errors easier to understand. Both are good first languages; the quality of the teaching matters more than the choice.

### Can I use ChatGPT or Claude to learn Java?

Adult learners can ask an AI tool to critique code they wrote. Claude's maker sets its minimum age at 18, and OpenAI wants a parent's consent for ChatGPT users under 18, so our teen batches work without adult AI accounts. Whatever the tool, you must be able to explain every line you hand in.

### What do I need to take the course?

You need a laptop or desktop, a dependable connection and, if possible, a headset with its own mic. The JDK costs nothing; you install it with your mentor during the first lesson. Writing Java on a phone is not realistic.

### How are Java fees paid?

Monthly card payments in US dollars. The soles amount is worked out by your bank, so expect small differences between statements. No card is needed for the free first class.

Read next

## Related pages

More for learners starting Java.

### [Curso de Java en inglés](/curso-de-java-en-ingles-peru)

Our Spanish-language page on these Java classes.

### [Java for beginners](/java-for-beginners)

How we start Java from nothing.

### [Java object-oriented concepts](/java-oops-concepts-course)

Classes, objects and design.

### [The "cannot find symbol" error](/java-cannot-find-symbol-error)

Reading a common compiler message.

### [Java for teenagers](/java-classes-for-teens)

What teens build in their first year.

### [Coding and AI classes in Peru](/coding-and-ai-classes-in-peru)

All our pages for Peru, by age and subject.

## More pages for Peru

Part of the guide: [Every Peru page](/coding-and-ai-classes-in-peru)

### Subjects and courses

- [AI agents course](/ai-agents-course-peru)
- [AI agents for professionals](/ai-agents-for-professionals-peru)
- [AI course for business](/ai-course-for-business-peru)
- [AI course for kids](/ai-course-for-kids-peru)
- [AI course for teens](/ai-course-for-teens-peru)
- [AI for teachers](/ai-for-teachers-peru)
- [AI for university students](/ai-course-for-university-students-peru)
- [App development course](/app-development-course-peru)
- [App development for teens](/app-development-for-teens-peru)
- [C++ course](/c-plus-plus-course-peru)
- [Data science course](/data-science-course-peru)
- [Java for CS students](/java-for-computer-science-students-peru)
- [Maths for kids in English](/maths-for-kids-in-english-peru)
- [Maths tutor in English](/maths-tutor-in-english-peru)
- [Minecraft coding for kids](/minecraft-coding-for-kids-peru)
- [One-on-one coding tutor](/one-on-one-coding-tutor-peru)
- [Online maths classes](/online-maths-classes-peru)
- [Python course](/python-course-peru)
- [Python for engineering students](/python-for-engineering-students-peru)
- [Python for kids](/python-for-kids-peru)
- [Roblox coding for kids](/roblox-coding-for-kids-peru)
- [Scratch for kids](/scratch-for-kids-peru)
- [Software development course](/software-development-course-peru)
- [SQL and data analysis](/sql-and-data-analysis-course-peru)
- [Vibe coding classes](/vibe-coding-classes-peru)
- [Web development course](/web-development-course-peru)

### Subjects and courses (in Spanish)

- [Agentes de IA para profesionales](/curso-de-agentes-de-ia-para-profesionales)
- [Clases particulares de programación](/clases-particulares-de-programacion-online-peru)
- [Crear apps: adolescentes](/crear-apps-curso-para-adolescentes-peru)
- [Curso de agentes de IA](/curso-de-agentes-de-ia-peru)
- [Curso de IA para adolescentes](/curso-de-ia-para-adolescentes-peru)
- [Curso de IA para empresas](/curso-de-ia-para-empresas-peru)
- [Curso de inteligencia artificial en inglés](/curso-de-inteligencia-artificial-en-ingles-peru)
- [Curso de inteligencia artificial para niños](/curso-de-inteligencia-artificial-para-ninos-peru)
- [Curso de Java en inglés](/curso-de-java-en-ingles-peru)
- [Curso de Python en inglés](/curso-de-python-en-ingles-peru)
- [Cursos de programación con certificado](/cursos-online-con-certificado-programacion-en-ingles)
- [Data science y Python](/curso-de-data-science-en-ingles-peru)
- [Desarrollo de aplicaciones](/curso-de-desarrollo-de-aplicaciones-en-ingles)
- [Desarrollo de software](/curso-de-desarrollo-de-software-en-ingles-peru)
- [Desarrollo web](/curso-de-desarrollo-web-en-ingles-peru)
- [IA para docentes](/ia-para-docentes-curso-en-ingles)
- [Java para universitarios](/curso-de-java-para-universitarios-peru)
- [Matemáticas en inglés para niños](/clases-de-matematicas-en-ingles-para-ninos)
- [Profesor de matemáticas en inglés](/profesor-de-matematicas-en-ingles-peru)
- [Profesor particular de matemáticas online](/profesor-particular-de-matematicas-online-peru)
- [Programación en Minecraft para niños](/programacion-minecraft-para-ninos-peru)
- [Programación en Roblox para niños](/programacion-roblox-para-ninos-en-ingles)
- [Python para ingeniería](/python-para-estudiantes-de-ingenieria-peru)
- [Python para niños](/curso-de-python-para-ninos-peru)
- [Scratch para niños en inglés](/scratch-para-ninos-en-ingles)
- [Vibe coding en inglés](/vibe-coding-curso-en-ingles)

More guides: [Coding and AI classes in Peru](/coding-and-ai-classes-in-peru) · [En español: clases de programación en inglés](/clases-de-programacion-en-ingles-peru) · [Start here: English-medium coding in Lima](/english-medium-coding-classes-lima) · [By age and stage: AI and coding for professionals](/ai-and-coding-for-professionals-peru) · [Exams, olympiads and school holidays: IB computer science tutor](/ib-computer-science-tutor-peru) · [Guides to choosing: An English-taught option to Crack The Code](/crack-the-code-alternative-in-english) · [Regions of Peru: Amazonas region](/online-coding-and-ai-classes-amazonas-region-peru) · [Cities: Arequipa: coding for every age](/coding-classes-in-arequipa-peru) · [Lima and Callao districts: Programación para niños en Ancón](/clases-de-programacion-para-ninos-ancon-lima)

Start here

## Book a free Java class from Peru

During the free class you set up a JDK, compile your first program and tell the mentor what you hope to do with Java. We then recommend a course, group or private lessons, and a Peru hour that fits your week.

Prefer to read more first? [How we teach](/how-we-teach) shows a live class step by step, and the [course list](/courses) has every syllabus.

[WhatsApp us](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20I%20am%20in%20Peru%20and%20want%20to%20learn%20Java%20from%20zero%20in%20live%20classes%20in%20English.%20Can%20I%20book%20a%20free%20first%20class%3F) · [+91 91233 66161](tel:+919123366161) · [connect@modernagecoders.com](mailto:connect@modernagecoders.com)

Lessons are live over video, taught from India, in English only. Send us a WhatsApp message in English if you want a quick answer.

### Want a class sooner? Book a priority demo

A priority demo is a full class of about 45 to 60 minutes. After the class the mentor sends a written skill report and a personal learning roadmap on WhatsApp. If you enrol, the demo fee is adjusted against your first month's fee. Share your demo Order ID with us on WhatsApp and we take it off.

[Book a priority demo](/book-demo)

## Keep exploring Modern Age Coders

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### Free resources

- [Java Tutorial for Beginners to Advanced](/resources/java)
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### From the blog

- [Java Tutorials & Programs](/blog/topic/java)
- [Top 10 Java Programs Every School Student Should Know (With Solutions)](/blog/top-10-java-programs-for-school-students)
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### Start here

- [Real projects built by Modern Age Coders students](/student-labs)
- [Browse every live course at Modern Age Coders](/courses)

Free class[Priority demo](/book-demo)[Call us](tel:+919123366161)

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*Canonical: https://learn.modernagecoders.com/java-course-peru*