calculator.java

来自「A calculator source code written in java」· Java 代码 · 共 35 行

/**
 * The main class of a simple calculator. Create one of these and you'll
 * get the calculator on screen.
 * 
 * @author David J. Barnes and Michael Kolling
 * @version 31 July 2000
 */
public class Calculator  
{
    private CalcEngine engine;
    private UserInterface gui;

    /**
     * Create a new calculator and show it.
     */
    public Calculator()
    {
        engine = new CalcEngine();
        gui = new UserInterface(engine);
    }

    /**
     * In case the window was closed, show it again.
     */
    public void show()
    {
        gui.setVisible(true);
    }
    
    public static void main(String [] args)
    {
        new Calculator().show();
    }
}