Java 如何在Jframe中分离Jpanel
我正在努力实现这个布局 我不知道为什么我会得到这个 这是我的密码Java 如何在Jframe中分离Jpanel,java,swing,debugging,jframe,jpanel,Java,Swing,Debugging,Jframe,Jpanel,我正在努力实现这个布局 我不知道为什么我会得到这个 这是我的密码 package testing; import java.io.*; import java.util.*; import java.security.*; import javax.xml.bind.DatatypeConverter; import java.lang.*; import java.awt.*; import javax.swing.*; public class Testing { pu
package testing;
import java.io.*;
import java.util.*;
import java.security.*;
import javax.xml.bind.DatatypeConverter;
import java.lang.*;
import java.awt.*;
import javax.swing.*;
public class Testing
{
public static class GridPanel extends JPanel
{
public GridPanel()
{
setLayout(new GridLayout(4,4));
setBackground(Color.GREEN);
this.setPreferredSize(new Dimension(500,100));
JButton b1 = new JButton ("Button 1");
JButton b2 = new JButton ("Button 2");
JButton b3 = new JButton ("Button 3");
JButton b4 = new JButton ("Button 4");
JButton b5 = new JButton ("Button 5");
JButton b6 = new JButton ("Button 6");
JButton b7 = new JButton ("Button 7");
JButton b8 = new JButton ("Button 8");
JButton b9 = new JButton ("Button 9");
JButton b10 = new JButton ("Button 10");
JButton b11 = new JButton ("Button 11");
JButton b12 = new JButton ("Button 12");
JButton b13 = new JButton ("Button 13");
JButton b14 = new JButton ("Button 14");
JButton b15 = new JButton ("Button 15");
JButton b16 = new JButton ("Button 16");
add(b1);
add(b2);
add(b3);
add(b4);
add(b5);
add(b6);
add(b7);
add(b8);
add(b9);
add(b10);
add(b11);
add(b12);
add(b13);
add(b14);
add(b15);
add(b16);
}
}
public static void main(String[] args)
{
JPanel primary = new JPanel();
primary.setPreferredSize(new Dimension(500,500));
JPanel jp1 = new JPanel();
jp1.setPreferredSize(new Dimension(500,100));
JTextField jt1 = new JTextField(8);
jp1.add(jt1);
GridPanel gp = new GridPanel();
primary.add(jp1);
primary.add(gp);
JFrame jf = new JFrame();
jf.setPreferredSize(new Dimension(500,500));
jf.add(primary);
jf.pack();
jf.setVisible(true);
}
}
我不知道如何将框架中的两个面板分开,我怎么会做错了???研究如何在JFrame中使用a,将面板的文本区域放在页面的开始部分,将GridPanel放在中间部分。研究在JFrame中使用a,将包含所需文本区域的面板放在页面开始部分,将GridPanel放在中间部分。研究将a用于JFrame,将包含所需文本区域的面板放在页面开始部分,将GridPanel放在中间部分。研究将a用于JFrame,将包含所需文本区域的面板放在页面开始部分,将GridPanel放在中间部分。尝试以下操作:
public static void main(String[] args)
{
JPanel primary = new JPanel(new BorderLayout());
primary.setOpaque(true);
JTextField jt1 = new JTextField(8);
jt1.setPreferredSize(new Dimension(0, 30));
primary.add(jt1, BorderLayout.NORTH);
GridPanel gp = new GridPanel();
primary.add(gp, BorderLayout.CENTER);
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setPreferredSize(new Dimension(400,200));
jf.setContentPane(primary);
jf.pack();
jf.setVisible(true);
}
试着这样做:
public static void main(String[] args)
{
JPanel primary = new JPanel(new BorderLayout());
primary.setOpaque(true);
JTextField jt1 = new JTextField(8);
jt1.setPreferredSize(new Dimension(0, 30));
primary.add(jt1, BorderLayout.NORTH);
GridPanel gp = new GridPanel();
primary.add(gp, BorderLayout.CENTER);
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setPreferredSize(new Dimension(400,200));
jf.setContentPane(primary);
jf.pack();
jf.setVisible(true);
}
试着这样做:
public static void main(String[] args)
{
JPanel primary = new JPanel(new BorderLayout());
primary.setOpaque(true);
JTextField jt1 = new JTextField(8);
jt1.setPreferredSize(new Dimension(0, 30));
primary.add(jt1, BorderLayout.NORTH);
GridPanel gp = new GridPanel();
primary.add(gp, BorderLayout.CENTER);
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setPreferredSize(new Dimension(400,200));
jf.setContentPane(primary);
jf.pack();
jf.setVisible(true);
}
试着这样做:
public static void main(String[] args)
{
JPanel primary = new JPanel(new BorderLayout());
primary.setOpaque(true);
JTextField jt1 = new JTextField(8);
jt1.setPreferredSize(new Dimension(0, 30));
primary.add(jt1, BorderLayout.NORTH);
GridPanel gp = new GridPanel();
primary.add(gp, BorderLayout.CENTER);
JFrame jf = new JFrame();
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setPreferredSize(new Dimension(400,200));
jf.setContentPane(primary);
jf.pack();
jf.setVisible(true);
}
@Computernerd:用上面给出的主函数替换代码主函数,它工作。@Computernerd:用上面给出的主函数替换代码主函数,它工作。@Computernerd:用上面给出的主函数替换代码主函数,它工作。@Computernerd:用上面给出的主函数替换代码主函数,它起作用了。