draw simple graphics with Java – with example

Common error that beginning java authors may experience.

The while loop in Java allows a loop block to be executed an arbitrary number of times until a condition is met. This tech-recipe shows the basic syntax of the Java while loop.

The for loop provides a simple mechanism for repeating a code block a fixed number of times or for iterating through a set of values.

The switch statement in Java provides a convenient method for branching a program based on a number of conditionals. This tech-recipe describes the use of the Java switch statement.

The if statement is a fundamental programming contruct. If allows a program to execute different blocks of code, depending on the result of a test. This tech-recipe describes the variations of the if statement in Java.

The Hello World program prints Hello World to the screen. It has long been a staple first application for a programmer trying out a new programming language. This tech-recipe describes the steps involved in compiling and running a simple Hello World program in Java.