6 Which classes in the Java standard library work with strings? The StringBuilder and StringBuffer classes are "twins" and are close to the String class in their purpose, but unlike the latter, the ...

The characters in a string have indices that run from 0 to string.length() - 1. The method charAt() returns the character at a specified index. The boolean operator ( == ) returns true only if the two ...

The documentation contains the following recommendations: Don't use string objects for string literals that are frequently changed. This causes performance issues as several string objects are created ...