Write a program using Java that prints the letters corresponding to the numbers on the telephone. So if you were to enter 6 it should print MNO. Now since you do not know how to do a System.in just do you for the number 7.

So your code should be like

int numberEntered = 7;

String value;

swtich (numberEntered){

case 1: value = "Nothing definded for 1"; break;

case 2 : value = "A,B,C"; break

.....

.....

default: value = "Not defined"; break

}

Make sure your code is formatted.