Reverse a String in java

In this tutorial we will learn how to reverse a string in java . There are mainly 3 ways to reverse the string.

Method 1-

public class StringReverse {
 public static void main(String[] args) {
  String str = "www.mycareerrepublic.com";
  System.out.println("Original String: " + str);
  char[] char_array = str.toCharArray();
  
  System.out.print("Reversed String: ");
  for (int i = char_array.length - 1; i >= 0; i--)
   System.out.print(char_array[i]);
 }
}

Original String: www.mycareerrepublic.com
Reversed String: moc.cilbuperreeracym.www

---

Method 2-

 public class StringReverse {
 public static void main(String[] args) {
  String str = "www.mycareerrepublic.com";
  System.out.println("Original String: " + str);

  StringBuffer stringBuffer = new StringBuffer();
  stringBuffer.append(str);
  System.out.print("Reversed String: " + stringBuffer.reverse());
 }
}  
    

Original String: www.mycareerrepublic.com
Reversed String: moc.cilbuperreeracym.www

---

Method 3-

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class StringReverse {
 public static void main(String[] args) {
  String str = "www.mycareerrepublic.com";
  System.out.println("Original String: " + str);
  char[] char_array = str.toCharArray();
  List strList = new ArrayList();

  for (Character character : char_array) {
   strList.add(character);
  }

  System.out.print("Reversed String: ");
  Collections.reverse(strList);
  for (Character character : strList) {
   System.out.print(character);
  }
 }
}

Original String: www.mycareerrepublic.com
Reversed String: moc.cilbuperreeracym.www

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About Mariano

I'm Ethan Mariano a software engineer by profession and reader/writter by passion.I have good understanding and knowledge of AngularJS, Database, javascript, web development, digital marketing and exploring other technologies related to Software development.