Reverse String : Java Program

package javaPrograms;

import java.util.Scanner;

public class ReverseString
{
//static  String reverseString;

  public static void main(String a[])
  {
 Scanner sc=new Scanner(System.in);
 System.out.println("enter string to reverse\n\n");
 String str=sc.nextLine();
//String str=sc.next();              for single word reverse



           String reverseString="";
 for (int i=str.length()-1;i>=0; i--)
 {
 reverseString=reverseString + str.charAt(i);

 }

 System.out.println("Reverse string is= "+reverseString);
  }

}

Output
-------------------------------------------------------------------------------------------------------


enter string to reverse


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Reverse string is= weivretnI rof margorP avaJ nraeL