我刚刚开始使用GUI编程。我正在尝试自定义框架,但是到目前为止,当我将其添加到gameView时,什么都没有出现,就像按钮或cat gif一样,所以我得到的只是运行框架后的框架窗口。到目前为止,这是我的代码:
package experiment10;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class mainFrame extends JFrame
{
public static int MAX = 500; // maximum number to guess
private JButton submitBtn; // Submit button
private JButton clearBtn; // Clear Input button
private JTextField inputNumber; //input guessed number
private int magicNumber; //randomly generated number
public static void main(String[] arg) {
//Show frame
JFrame frame = new JFrame();
frame.setVisible(true);
}
public mainFrame() {
setSize(400, 400);
setResizable (false);
setTitle("Let's Play Hi Lo");
setDefaultCloseOperation(EXIT_ON_CLOSE);
magicNumber = (int)(Math.random()*MAX);
Container gameView = getContentPane();
gameView.setLayout(new FlowLayout());
//Customizations
submitBtn = new JButton("Submit"); //create submit button
clearBtn = new JButton("Clear"); //create clear button
gameView.add(submitBtn); //adds submit button
gameView.add(clearBtn); //adds clear button
JLabel imageLabel = new JLabel(new ImageIcon("cat.gif")); //creates image
gameView.add(imageLabel); //adds image
JLabel textLabel = new JLabel("Please enter your guess"); //creates JLabel
gameView.add(textLabel); //adds JLabel
JTextField input = new JTextField(); //creates JTextField
gameView.add(input); //adds JTextField
}
}
非常感谢任何帮助/提示。谢谢。
您将需要从主方法调用mainFrame():
mainFrame frame = new mainFrame();
您还可以从主体中删除以下代码:
JFrame frame = new JFrame();
frame.setVisible(true);
然后您将setVisible(true);
添加到mainFrame()构造函数中。