help me about Interface

[manhtungtnk28@gmail.com]

I want user GridBagLayout.

Because I learning about GridBagLayout should I create three Panel to container at Controls.

JPanel1 container JButton:1,2,3,+;
JPanel2 container JButton:4,7,0;
JPanel3 container the left JButton.

I hope everyone help me about learn.

other, you can to speak for me edit distance from container to JFrame

import javax.swing.*;
import javax.swing.JTextField;
import java.awt.*;

public class ToCalculator extends JFrame
{
       
        private JMenuBar menuBar;
        private JMenu file,view,help;
        private JMenuItem mnew,exit,colorred, colorblue,colordefalt,helpitem;
        private JTextField input;
       
        private JButton btn[],btnSum, btnSub, btnDiv, btnMul, btnEqual,btnSqrt,btnSquare;
        private String str[] = {"0","1","2","3","4","5","6","7","8","9"};
        private GridBagLayout gridBagLayout;
        private GridBagConstraints gridBagConstraint;
        private Container container;
       
        // khai bao 3 panel d? ch?a các nút tuong ?ng
        private JPanel panel123,p;
        private JPanel panel470;
        private JPanel panel5689;
        public ToCalculator()
        {
                //supre must call the first on create function
                super("Calculator v1.0");
                this.setBackground(Color.red);
                this.setDefaultCloseOperation(EXIT_ON_CLOSE);
               
                //menu
                file = new JMenu("File");
                mnew = new JMenuItem("New");
                exit = new JMenuItem("Exit");
                file.add(mnew);
                file.add(exit);
               
                view = new JMenu("View");
                colorred = new JMenuItem("Red");
                colorblue = new JMenuItem("Blue");
                colordefalt = new JMenuItem("Default");
                view.add(colorred)      ;
                view.add(colorblue);
                view.add(colordefalt);
                       
                help = new JMenu("Help");
                helpitem = new JMenuItem("Help");
                help.add(helpitem);
               
                menuBar = new JMenuBar();
       
                menuBar.add(file);
                menuBar.add(view);
                menuBar.add(help);
                setJMenuBar(menuBar);
               
                //layout
                btnEqual = new JButton("=");
                btnDiv = new JButton("/");
                btnMul = new JButton("*");
                btnSquare = new JButton("x^2");
                btnSqrt = new JButton("Sqrt");
                btnSub = new JButton("-");
                btnSum = new JButton("+");
               
                btn = new JButton[str.length];
                for(int i = 0;i<str.length;i++)        
                {
                        btn = new JButton(str);
                }
               
                panel123 = new JPanel( new GridLayout(1,4));
                panel123.add(btn[1]);
                panel123.add(btn[2]);
                panel123.add(btn[3]);
                panel123.add(btnSum);
               
                panel470 = new JPanel(new GridLayout(3,1));
                panel470.add(btn[4]);
                panel470.add(btn[7]);
                panel470.add(btn[0]);
               
                panel5689 = new JPanel( new GridLayout(3,3));
                panel5689.add(btn[5]);
                panel5689.add(btn[6]);
                panel5689.add(btnSub);
                panel5689.add(btn[8]);
                panel5689.add(btn[9]);
                panel5689.add(btnMul);
                panel5689.add(btnSqrt);
                panel5689.add(btnSquare);
                panel5689.add(btnDiv);
               
                input = new JTextField(20);
                               
                gridBagLayout = new GridBagLayout();
                container = this.getContentPane();
                container.setLayout(gridBagLayout);
               
                gridBagConstraint = new GridBagConstraints();
                //add test field
                gridBagConstraint.gridy = 0;
                gridBagConstraint.gridx = 0;
                gridBagConstraint.gridwidth = 2;
                gridBagConstraint.gridheight = 1;
                container.add(input,gridBagConstraint);
               
                gridBagConstraint.gridy =1;
                gridBagConstraint.gridx = 0;
                gridBagConstraint.gridwidth = 2;
                gridBagConstraint.gridheight = 1;
                container.add(panel123,gridBagConstraint);
               
                gridBagConstraint.gridy = 2;
                gridBagConstraint.gridx = 0;
                gridBagConstraint.gridwidth = 1;
                gridBagConstraint.gridheight = 1;
                container.add(panel470,gridBagConstraint);
               
                gridBagConstraint.gridx = 1;
                gridBagConstraint.gridwidth = 1;
                gridBagConstraint.gridheight = 1;
                container.add(panel5689,gridBagConstraint);
               
                //to display Frame, must call the end on create function
                pack();
                setVisible(true);              
        }
}

I want


thank everyone

[PhHein]

You've flooded the forum. IgnoreList++

[sky]

There is no need to post this twice. Maybe a BorderLayout + GridLayout on the center could be more helpful.

[manhtungtnk28@gmail.com]

java - why java techology hard