Java Basics in Practice with 35+ Exercises & Quizzes – 2025


Java Basics: IDEs, Data Types, Variables, Operators, if-else, switch Statements, Loops, Methods, Arrays, Strings

What you will learn


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Java

Java Development Kit (JDK) setup

Basic Java program execution

Integrated Development Environment (IDE) understanding

Primitive data types usage

Variable declaration and initialization

Type casting

Primitive and non-primitive data type differentiation

Array and string declaration

Variable naming conventions

Variable scope

Console output

Console input using the Scanner class

Arithmetic operators usage

Comparison and logical operators usage

Operator precedence understanding

if-else statement usage

Switch statement usage

Loop usage (for, while, do-while)

Loop control (break, continue)

Method definition and invocation

Method overloading

Recursion in methods

Array manipulation

String immutability understanding

String concatenation

String comparison

String formatting

String pool concept

English
language