package stumng;import javax.swing.*;import java.awt.*;import com.borland.jbcl.layout.*;public class addgradeFrame extends JFrame {  XYLayout xYLayout1 = new XYLayout();  JLabel jLabel1 = new JLabel();  JTextField jTextField1 = new JTextField();  JLabel jLabel2 = new JLabel();  JTextField jTextField2 = new JTextField();  JLabel jLabel3 = new JLabel();  JTextField jTextField3 = new JTextField();  JLabel jLabel4 = new JLabel();  JTextField jTextField4 = new JTextField();  JButton jButton1 = new JButton();  public addgradeFrame() {    try {      jbInit();      this.setTitle("增加學生成績");      this.setSize(500,300);      this.setResizable(false);      this.setLocation(200,300);    }    catch(Exception ex) {      ex.printStackTrace();    }  }  void jbInit() throws Exception {    jLabel1.setFont(new java.awt.Font("Dialog", 0, 13));    jLabel1.setText("學號");    this.getContentPane().setLayout(xYLayout1);    jTextField1.setText("jTextField1");    jLabel2.setFont(new java.awt.Font("Dialog", 0, 13));    jLabel2.setText("數學");    jTextField2.setText("jTextField2");    jLabel3.setFont(new java.awt.Font("Dialog", 0, 13));    jLabel3.setText("語文");    jTextField3.setText("jTextField3");    jLabel4.setFont(new java.awt.Font("Dialog", 0, 13));    jLabel4.setText("英語");    jTextField4.setText("jTextField4");    jButton1.setFont(new java.awt.Font("Dialog", 0, 13));    jButton1.setText("增加");    this.getContentPane().add(jLabel3,  new XYConstraints(245, 110, 38, 24));    this.getContentPane().add(jLabel1, new XYConstraints(74, 49, 68, 36));    this.getContentPane().add(jLabel2, new XYConstraints(73, 105, 60, 39));    this.getContentPane().add(jTextField2,    new XYConstraints(137, 110, 78, 29));    this.getContentPane().add(jTextField4,     new XYConstraints(137, 166, 79, 29));    this.getContentPane().add(jTextField3,   new XYConstraints(299, 109, 82, 30));    this.getContentPane().add(jTextField1,  new XYConstraints(139, 54, 77, 27));    this.getContentPane().add(jLabel4,  new XYConstraints(75, 167, 47, 30));    this.getContentPane().add(jButton1, new XYConstraints(160, 221, 100, 36));  }}