Java String Reverse Example

This example shows how to reverse a given string

public class StringReverseExample {

 public static void main(String args[]) {

  // declare one string object.

  String str = "Hello World";
  System.out.println("Original String : " + str);

  /**
   * The easiest way to reverse a given string is to use
   * reverse() method of java StringBuilder class.reverse()
   * method returns the StringBuilder object so we need to
   * cast it back to String using toString() method of
   * StringBuilder
   **/

  str = new StringBuilder(str).reverse().toString();

  System.out.println("Reversed String : " + str);
 }

}

The output is:


Original String : Hello World
Reversed String : dlroW olleH