How to trim a given string using String.trim() method in Java?

Consider the program:

Here, is a string with trailing and leading spaces and program will trim the string (remove the spaces).

import java.lang.*;

public class StringTrimPrg
{
	public static void main(String []args)
	{
		String str="   www.includehelp.com      ";
		System.out.println("String omitting leading and trailing spaces: "+ str.trim());
	}
}

Output

String omitting leading and trailing spaces: www.includehelp.com