Help on Lisp programming question.

Please help! A question about programming?

• I'm trying to create a Java program for finding the area of a rectangle width 5.7 by length 4.8 This is what I put into Ready To Program: public class Area /* *Name *This program is to determine *the area of a 5.7 by 4.8 rectangle */ { public static void main(String[] args) { //variable declaration int principal, rate; //variable initialization principal = 5.7; rate = 4.8; //calculations interest = principal * rate; //output System.out.println("Area Program"); System.out.println("The area is" + interest); } } It keeps giving me errors. I'm really new to all this computer science programming, so I basically have no idea what I'm doing. Please help! I need this program to work so I can multiply 5.7 by 4.8.

• Answer:

  I do not really know Java, but from experience from other programming languages I think you just forgot to declare the interest variable. You must declare it too: //variable declaration int principal, rate, interest;