How to reverse string in java

by Online Tutorials Library July 22, 2022

How to reverse String in Java

There are many ways to reverse String in Java. We can reverse String using StringBuffer, StringBuilder, iteration etc. Let’s see the ways to reverse String in Java.

1) By StringBuilder / StringBuffer

File: StringFormatter.java

 public class StringFormatter { public static String reverseString(String str){ StringBuilder sb=new StringBuilder(str); sb.reverse(); return sb.toString(); } } 

File: TestStringFormatter.java

 public class TestStringFormatter { public static void main(String[] args) { System.out.println(StringFormatter.reverseString(“my name is khan”)); System.out.println(StringFormatter.reverseString(“I am Tutor Aspire Team”)); } } 

Output:

nahk si eman ym lawsiaj oonos ma I

2) By Reverse Iteration

File: StringFormatter.java

 public class StringFormatter { public static String reverseString(String str){ char ch[]=str.toCharArray(); String rev=””; for(int i=ch.length-1;i>=0;i–){ rev+=ch[i]; } return rev; } } 

File: TestStringFormatter.java

 public class TestStringFormatter { public static void main(String[] args) { System.out.println(StringFormatter.reverseString(“my name is khan”)); System.out.println(StringFormatter.reverseString(“I am Tutor Aspire Team”)); } } 

Output:

nahk si eman ym lawsiaj oonos ma I

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How to reverse string in java

How to reverse String in Java

1) By StringBuilder / StringBuffer

2) By Reverse Iteration

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