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public class Q7_2008
{
    static void main()
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter something :");
        String s=sc.next();
        String r="";
        for(int i=0;i<s.length();i++)
        {
            char ch=s.charAt(i);
            if(Character.isUpperCase(ch))
            {
                r=r+Character.toLowerCase(ch);
            }
            else if(Character.isLowerCase(ch))
            {
                r=r+Character.toUpperCase(ch);
                
            }
            else
            r+=ch;
        }
        System.out.println("Output:"+r);
    }
    
}

Submitted By: Ms. Suchetana Mukherjee

If this program was helpful to you, do leave a comment.
All Creadit goes to Ms. Suchetana Mukherjee

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Student should perform all the practicals for there personal copies.