// The "Powers" class.
//  Two buttons allow users to select either to get a cube or a square.
import java.applet.*;
import java.awt.*;

public class Powers extends Applet
{
    Label enter; //on the input text field
    TextField input; // place to put input
    int number; // variable to receive the input
    Label result; // on the output text field
    TextField output;  // plce to show answers
    Button square;  // button to press to get the square of a number
    Button cube;  // button to press to get the cube of a number
    
    
    public void init ()
    {
	//prepare the display by initializing the display items.\:
	enter = new Label("Enter an integer");
	input = new TextField(20);
	result = new Label("Result");
	output = new TextField(20);
	square = new Button("Square");
	cube = new Button("Cube");
	//put the items on the applet:
	add(enter);
	add(input);
	add(result);
	add(output);
	add(square);
	add(cube);
	
      
    } // init method
    
    public boolean action(Event e, Object o)
    {
	number = Integer.parseInt(input.getText()); //convert the input string to an integer
	if (e.target instanceof Button) //check to see if a button was pushed
	//see Chapter 7 for getting doubles.
	{
	    if(e.target == cube)// check to see if the button pushed is the cube button
		output.setText("Cube is " +
		    Integer.toString(cube (number)));//call the cube method
		  
	    else if (e.target == square)//check to see if the button pushed is the square button
		output.setText("Square is " + Integer.toString(square(number)));//call the square method
	    return true;
	}
	return true;
    }//action method
    
    public int square(int number)//method to find the square of an integer
    {
	return number*number;
    }
    
    public int cube(int number)//method to find the cube of a number
    {
	return number*number*number;
    }
    
    public void paint (Graphics g)
    {
	// Place the body of the drawing method here
    } // paint method
} // Powers class