?? stringhandleframe.java
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package stringhandle;import java.awt.*;import java.awt.event.*;import javax.swing.*;import com.borland.jbcl.layout.*;/** * <p>Title: string Handle Demo</p> * <p>Description: This is a string Handle Demo</p> * <p>Copyright: Copyright (c) 2002</p> * <p>Company: D6-125</p> * @author liujun * @version 1.0 */public class stringHandleFrame extends JFrame { JPanel contentPane; JTextField jTextField1 = new JTextField(); XYLayout xYLayout1 = new XYLayout(); JButton jButton1 = new JButton(); JLabel jLabel1 = new JLabel(); JLabel jLabel2 = new JLabel(); JLabel jLabel3 = new JLabel(); boolean changebutton=true; //Construct the frame public stringHandleFrame() { enableEvents(AWTEvent.WINDOW_EVENT_MASK); try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } //Component initialization private void jbInit() throws Exception { //setIconImage(Toolkit.getDefaultToolkit().createImage(stringHandleFrame.class.getResource("[Your Icon]"))); contentPane = (JPanel) this.getContentPane(); contentPane.setLayout(xYLayout1); this.setResizable(false); this.setSize(new Dimension(394, 245)); this.setTitle("string Handle Frame Demo"); jButton1.setText("添加字符串"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jButton1_actionPerformed(e); } }); contentPane.add(jTextField1, new XYConstraints(22, 10, 245, 30)); contentPane.add(jButton1, new XYConstraints(279, 10, 108, 31)); contentPane.add(jLabel1, new XYConstraints(16, 65, 361, 43)); contentPane.add(jLabel2, new XYConstraints(16, 128, 361, 43)); contentPane.add(jLabel3, new XYConstraints(16, 187, 361, 43)); } //Overridden so we can exit when window is closed protected void processWindowEvent(WindowEvent e) { super.processWindowEvent(e); if (e.getID() == WindowEvent.WINDOW_CLOSING) { System.exit(0); } } void jButton1_actionPerformed(ActionEvent e) { String name; //用于按鈕的名字比較 int a; //用于判斷兩個字符串的比較結果 name=jButton1.getText(); //得到按鈕的文本標簽 if(name.equals("比較")){ //若是“比較”,則執行字符串比較功能 a=jLabel1.getText().compareTo(jLabel2.getText());//得到比較結果 if(a<0){ //字符串1小于字符串2,設置標簽三 jLabel3.setText("字符串1小于字符串2"); }else if(a>0){ //字符串1大于字符串2,設置標簽三 jLabel3.setText("字符串1大于字符串2"); }else{ //字符串1和字符串2相等,設置標簽三 jLabel3.setText("字符串1和字符串2相等"); } changebutton=true; jButton1.setText("添加字符串1");//比較完成,將按鈕標簽重置 }else if(changebutton){//添加第一個字符串 jLabel1.setText(jTextField1.getText()); //添加字串到標簽1中 changebutton=!changebutton; //更改changebutton變量值 jTextField1.setText(""); //清空輸入文本框 jButton1.setText("添加字符串2");//更改按鈕標簽 jLabel2.setText(""); //清空標簽2 jLabel3.setText(""); //清空標簽3 }else{ //添加第二個字符串 jLabel2.setText(jTextField1.getText()); //添加字串到標簽2中 changebutton=!changebutton;//更改changebutton變量值 jTextField1.setText(""); //清空輸入文本框 jButton1.setText("比較"); //更改按鈕標簽 } }}
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