calculatorview.java

用java编写的实现计算器的众多功能 方便实用

package lab5;
import java.awt.*;
import javax.swing.*;

public class CalculatorView extends JFrame {
	final static long serialVersionUID = 20000;

	final int NUM = 24;

	JButton[] buttons;

	String[] texts = { "CE", "MC", "0", "1", "2", "+", "sin", "MR", "3", "4",
			"5", "-", "cos", "MS", "6", "7", "8", "*", "tan", "M+", "9", ".",
			"=", "/" };

	JTextField rgstScreen;

	JTextField mainScreen;

	JPanel buttonPanel;

	JPanel textPanel;

	CalculateController calController = null;

	public CalculatorView(String title, CalculateController controller) {
		super(title);

		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setLayout(new BorderLayout());
		JFrame.setDefaultLookAndFeelDecorated(true);

		calController = controller;

		rgstScreen = new JTextField("0.0", 10);
		mainScreen = new JTextField("0.0", 20);
		rgstScreen.setEditable(false);
		mainScreen.setFocusable(false);

		textPanel = new JPanel();
		textPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
		textPanel.add(rgstScreen);
		textPanel.add(mainScreen);

		buttonPanel = new JPanel();
		buttonPanel.setLayout(new GridLayout(4, 6));

		buttons = new JButton[NUM];
		for (int i = 0; i < NUM; i++) {
			buttons[i] = new JButton(texts[i]);
			buttons[i].addActionListener(calController);
			buttons[i].setActionCommand(texts[i]);
			buttonPanel.add(buttons[i]);
		}

		this.getContentPane().add(textPanel);
		add(textPanel, BorderLayout.NORTH);
		add(buttonPanel, BorderLayout.SOUTH);

		pack();
		setVisible(true);
	}
	public double getMainScreenData() {
		return Double.parseDouble(mainScreen.getText());
	}
	public void repaint() {
		super.repaint();
		Calculate cal = calController.getCalculate();
		mainScreen.setText(cal.getCurStr());
		rgstScreen.setText(Double.toString(cal.getRgst()));
	}

}