An array in Java is a type of variable that can store multiple values. It stores these values based on a key that can be used to subsequently look up that information. Arrays can be useful for ...

String s1 = new String("Hello world!"); That code will create an s1 string object and a reference variable. As noted, Java strings are immutable. Once created, a string using string class cannot be ...

The Java printf function makes it easier to create informative strings of text without ... The following Java printf example formats a text String, and substitutes two variables into the text where ...