Writing if statements. The simplest of Java’s decision statements is the if statement, which evaluates a Boolean expression and executes another statement when this expression evaluates to true.

How to write your first Java program. The first non-trivial Java program I ever wrote was a number guessing game, and it gave me a good idea of how variables, loops and conditional statements work. I ...

Developers make assumptions about how our code will behave when executed, but we’re not always right. Without certainty, it is challenging to write programs that work correctly at runtime. Java ...

This statement will write the words “Hello world!” on the screen. ... Hopefully, you now have a good idea of how to learn Java. You can even write some simple code yourself: ...