// A first attempt at a Point class:
// Has state and behavior -- fields and methods
//
// It could use a lot more functionality here
// in this class, like a way to print out a Point
// better ways to create Points. We can also
// add even more methods that let a client do
// other common operations with Points
public class Point1 {
   // state
   // fields
   int x;
   int y;
   
   // behavior
   // instance method
   // mutators
   public void translate(int dx, int dy) {
      x += dx;
      y += dy;
   }
   
   // accessors
   public double distanceFromOrigin() {
      return Math.sqrt(x * x + y * y);
   }
   
}