Write a program that places some buttons in a specific manner using Layout manager.(File must be save as: SevenButtonPlacing.java)

import java.awt.GridBagLayout;

import java.awt.GridBagConstraints;

import javax.swing.JFrame;

import javax.swing.JButton;

import java.awt.Insets;

class Practice extends JFrame

{

            GridBagLayout layout=new GridBagLayout();

            GridBagConstraints c=new GridBagConstraints();

            public Practice()

            {

                        super("Buttons are placed as:");

                        setLayout(layout);

                        JButton button1=new JButton("Button1");

                        JButton button2=new JButton("Button2");

                        JButton button3=new JButton("Button3");

                        JButton button4=new JButton("Button4");

                        JButton button5=new JButton("Button5");

                        JButton button6=new JButton("Button6");

                        JButton button7=new JButton("Button7");

                        c.gridx=0;

                        c.gridy=0;

                        layout.setConstraints(button1,c);

                        add(button1);

                        c.gridx=2;

                        c.gridy=0;

                        layout.setConstraints(button2,c);

                        add(button2);

                        c.gridx=0;

                        c.gridy=1;

                        c.insets=new Insets(30,75,30,0);

                        layout.setConstraints(button3,c);

                        add(button3);

                        c.gridx=2;

                        c.gridy=1;

                        c.insets=new Insets(30,0,30,75);

                        layout.setConstraints(button4,c);

                        add(button4);

                        c.gridx=0;

                        c.gridy=2;

                        c.insets=new Insets(0,0,0,0);

                        layout.setConstraints(button5,c);

                        add(button5);

                        c.gridx=2;

                        c.gridy=2;

                        layout.setConstraints(button6,c);

                        add(button6);

                        c.gridx=1;

                        c.gridy=3;

                        c.insets=new Insets(20,0,0,0);

                        layout.setConstraints(button7,c);

                        add(button7);

            }

}

public class Assignment13

{

            public static void main(String args[])

            {

                        Practice practice=new Practice();

                        practice.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

                        practice.setSize(400,300);

                        practice.setVisible(true);

            }

}

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