// Implementation of the trim method in the String class new String(Arrays.copyOfRange(val, index, index + len), LATIN1); What to remember about String String s are immutable, so a String ’s ...

class java.util.ArrayList class java.util.LinkedList In this case, the implementation methods for ArrayList, LinkedList, and Vector are all different, which is a great scenario for using an interface.

Types of strings in Java. Java distinguishes between primitive strings and object strings:. Primitive strings. These are string literals or string calls from a nonconstructor context. A constructor is ...

The Long.parseLong() method returns a long primitive, not a wrapper.; The Long.parseLong() method uses the Long class, which is semantically correct. The Long.parseLong() method does not require ...