Java programs without a graphical user interface use a computer's command line to interact with the user. It is vital that the program's command line output is properly formatted and spaced so ...

How is a Java array’s size and length used in a loop? A common example of the Java array length property being used in code is a program looping through all of the elements in an array. The following ...

To test the Supplier interface, we simply code for a loop which creates a new RandomDigitSupplier interface on each iteration, and prints out the random value. /* Test class for the Java Supplier ...

In prior Java 101 articles, I referred to the concepts of redirection, standard input device, and standard output device. To demonstrate inputting data, several examples called System.in.read().