A Java string is a sequence of characters that exists as an object of the class java.lang. Java strings are created and manipulated through the string class. Once created, a string is immutable -- its ...

Generics make your code more flexible and easier to read, and they help you avoid ClassCastExceptions at runtime. Get started with this introduction to using generics with the Java Collections ...

Though Java already has a character type and char keyword to represent and manipulate characters, the language also requires a Character class for two reasons: Character c1 = new Character ('A'); ...