Question

我有非常简单的代码，只有2个按钮来显示textArea中数组的数字。

public class FotyUI extends javax.swing.JFrame {
    public FotyUI() {
        initComponents();
    }
int[] numbers = {0,1,2,3,4,5,6,7,8,9};
int position  = 0;

private void nextActionPerformed(java.awt.event.ActionEvent evt) {                                     
         position ++;
        tekst.setText(" " + numbers[position]);

    }        



private void previousActionPerformed(java.awt.event.ActionEvent evt) {                                         
     position--; 
    tekst.setText(" " + numbers[position]);

}

现在，这段代码运行得很好我有两个按钮和textArea，但我想创建一个带有2个按钮的外部JFrame2来控制/显示第1帧的数组当我输入：

public class FotyUI extends javax.swing.JFrame {


    public FotyUI() {
        initComponents();
    }
int[] numbers = {0,1,2,3,4,5,6,7,8,9};
int position  = 0;



JFrame temp = new JFrame();
JPanel panelik = new JPanel();
JButton nextS = new JButton("Next");
JButton prevS = new JButton("Previous");
panelik.add(nextS);

创建包panelik时出错... 你能帮我吗？如何使用2个按钮和textArea创建第2帧以显示/控制来自第1帧的数组内容

Answer 1

好吧，我解决了!!!!!!!!

     JFrame frame = new JFrame("Test");
      frame.setVisible(true);
      frame.setSize(500,200);
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

      JPanel panel = new JPanel();
      frame.add(panel);
      JButton button = new JButton("hello agin1");
      panel.add(button);
      pole = new JTextField();
      panel.add(pole);
      button.addActionListener (new Action1());
static class Action1 implements ActionListener {        
  public void actionPerformed (ActionEvent e) {     
     position ++;
        tekst.setText(" " + numbers[position]);
  pole.setText(" " + numbers[position]);
  }
}

JAVA外部Frame控制阵列

1 个答案: