Reverse a string using java existing API is really very easy. Below example will show you how to reverse the string using StringBuilder class.
package com.techbyteslearn.www;
public class ReverseString {
/**
* @param args
*/
public static void main(String[] args) {
String inputString = "javadevelopersguide";
System.out.println("Before Reverse:: " + inputString);
// You can do this using StringBuffer also, based on your requirement.
// If you are concerned about thread safety, use StringBuffer.
StringBuilder builder = new StringBuilder(inputString).reverse();
// After reverse using StringBuilder
inputString = builder.toString();
System.out.println("After Reverse:: " + inputString);
}
}
Output :-
Before Reverse::javadevelopersguide
After Reverse:: ediugsrepolevedavaj
