progressbarframe.java

ACCP 软件工程java 教程学生用书

package progressbarapplication;

import java.awt.BorderLayout;
import java.awt.Dimension;

import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.*;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JProgressBar;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2005</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class ProgressBarFrame extends JFrame {
    JPanel contentPane;
    BorderLayout borderLayout1 = new BorderLayout();
    JPanel pnlCenter = new JPanel();
    JLabel lblText = new JLabel();
    JTextField txtNumber = new JTextField();
    JButton btnOk = new JButton();
    JProgressBar pbrNumber = new JProgressBar();
    int number;
    public ProgressBarFrame() {
        try {
            setDefaultCloseOperation(EXIT_ON_CLOSE);
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    /**
     * Component initialization.
     *
     * @throws java.lang.Exception
     */
    private void jbInit() throws Exception {
        contentPane = (JPanel) getContentPane();
        contentPane.setLayout(borderLayout1);
        setSize(new Dimension(246, 115));
        setTitle("进度栏");
        lblText.setFont(new java.awt.Font("宋体", Font.PLAIN, 11));
        lblText.setText("请输入一个数字：");
        lblText.setBounds(new Rectangle(27, 11, 92, 19));
        txtNumber.setFont(new java.awt.Font("Tahoma", Font.PLAIN, 11));
        txtNumber.setText("");
        txtNumber.setBounds(new Rectangle(128, 10, 62, 20));
        pnlCenter.setLayout(null);
        btnOk.setBounds(new Rectangle(91, 44, 58, 29));
        btnOk.setFont(new java.awt.Font("宋体", Font.PLAIN, 11));
        btnOk.setText("确定");
        btnOk.addActionListener(new ProgressBarFrame_btnOk_actionAdapter(this));
        pbrNumber.setBounds(new Rectangle(3, 82, 234, 18));
        pnlCenter.add(txtNumber);
        pnlCenter.add(lblText);
        pnlCenter.add(pbrNumber);
        pnlCenter.add(btnOk);
        contentPane.add(pnlCenter, java.awt.BorderLayout.CENTER);
    }

    public void btnOk_actionPerformed(ActionEvent e) {
        number = Integer.parseInt(txtNumber.getText());

        for(int ctr = 0; ctr <number; ctr++){
            pbrNumber.setValue(pbrNumber.getValue()+1);
        }
    }
}


class ProgressBarFrame_btnOk_actionAdapter implements ActionListener {
    private ProgressBarFrame adaptee;
    ProgressBarFrame_btnOk_actionAdapter(ProgressBarFrame adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.btnOk_actionPerformed(e);
    }
}