Java program to accept a String and Convert the case of each alphabet present in it

 Java program  to accept a String and Convert the case of each  alphabet present in it.(eq- JaVa---jAvA)

import java.util.Scanner;

public class demo{

public static void main(String args[]) {

Scanner sc = new Scanner(System.in);

@SuppressWarnings("unused")

String str = sc.nextLine();

sc.close();

@SuppressWarnings("unused")

String temp ="";

char ch;

for(int i=0;i<str.length();i++){

if(Character.isAlphabetic(str.charAt(i))) {

if(Character.isUpperCase(str.charAt(i)))

ch = Character.toLowerCase(str.charAt(i));

else

ch = Character.toUpperCase(str.charAt(i));

temp = temp + ch;

continue;

}

temp = temp + str.charAt(i);

}

System.out.println(str);

System.out.print(temp);

}

}