Converting each alphabet of a string into its opposite case.

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Write a program to input a string. Convert each alphabet into its opposite case. Print original and new string.




              SOURCE CODE                        


import java.io.*;
import java.util.*;
public class Conversion
{
    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        System.out.print("Enter a String    :");
        String str=sc.nextLine();
        String st="";
        System.out.println("\nOUTPUT");
        System.out.println("Original String "+str);
       
        for(int i=0;i<str.length();i++)
        {
            char ch=str.charAt(i);
            if(Character.isUpperCase(ch))
            {
                st=st+Character.toLowerCase(ch);
            }
            else if(Character.isLowerCase(ch))
            {
                st=st+Character.toUpperCase(ch);
            }
            else
            {
                st=st+ch;
            }
        }
        System.out.println("Converted String = "+st);
    }
}




OUTPUT




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