Java Coding Tutorial for Young Kids

Beginners Introduction to the Syntax and Symantics of the Java Programming Language

int, String, char, boolean keywords are used to declare variables in Java.
Variables are like your x and y in algebra where x and y can take any value.

In Java, conditional operators like
       if(){
       ...
       } else {
       ...
       }
give different options for different conditions.
For instance:

if(age > 18){
System.out.println("You are grown-up now.");
} else {
System.out.println("You are still young.");
}


while loop:
       while(){
       ...
       }

and

for loop:
       for(){
       ...
       }
.

In Java, the arithmetic operators do exactly what you would expect:
       + means add;
       - means subtract;
       * means multiply;
       / means divide; and
       % means moduli.

// are used for single line comments in Java.
/* ... */ are used for multi-line comments in Java.
Comments are just remarks (explanations) you write along side your code for clarity purposes (help you define what you are doing); and also for future remembrance of what a piece of code was meant for.

The compiler neither needs nor processes them.