Java Program to create GUI and apply the changes to the text in the textfield - IProgramX

by - IProgram X on - July 03, 2018
Q.  Write a program to create the following GUI and apply the changes to the text in the TextField.

Program:

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

class Swing1 extends JFrame implements ItemListener  
{
                JLabel font, style, size;
                JComboBox fontcb, sizecb;
                JCheckBox bold, italic;
                JTextField t;
                JPanel p1, p2;
                Swing1()
                {              p1 = new JPanel();                         
                                p2 = new JPanel();                                                         
                                font = new JLabel("Font");
                                style = new JLabel("Style");

                                fontcb = new JComboBox();
                                fontcb.addItem("Arial");
                                fontcb.addItem("Sans");
                                fontcb.addItem("Monospace");


                                bold = new JCheckBox("Bold");
                                size = new JLabel("Size");
                                italic = new JCheckBox("Italic");

                                sizecb = new JComboBox();
                                sizecb.addItem("10");
                                sizecb.addItem("12");
                                sizecb.addItem("16");                  
                                t = new JTextField(10);

                                p1.setLayout(new GridLayout(4,2));
                                p1.add(font);
                                p1.add(style);
                                p1.add(fontcb);
                                p1.add(bold);
                                p1.add(size);
                                p1.add(italic);
                                p1.add(sizecb);

                                p2.setLayout(new FlowLayout());
                                p2.add(t);

                                bold.addItemListener(this);
                                italic.addItemListener(this);
                                fontcb.addItemListener(this);
                                sizecb.addItemListener(this);

                                setLayout(new BorderLayout());
                                add(p1,BorderLayout.NORTH);
                                add(p2,BorderLayout.CENTER);

                                setSize(200, 200);
                                setVisible(true);
                                setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                }
                public void itemStateChanged(ItemEvent ie)                    
                {
                                String f = (String)fontcb.getSelectedItem();
                                System.out.println("font = "+f);
                                t.setFont(new Font(f,Font.BOLD,10));
                                String no =(String)sizecb.getSelectedItem();
                                int num=Integer.parseInt(no);

                                if(bold.isSelected())
                                {
                                                t.setFont(new Font(f,Font.BOLD,num));
                                }            
                                if(italic.isSelected())
                                {
                                                t.setFont(new Font(f,Font.ITALIC,num));
                                }


                }
                public static void main(String args[])
                {
                                Swing1 f1 = new Swing1();
                }
}
Output:


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2 Comments

  1. Mateusz DomańskiOctober 2, 2019 at 9:25 PM

    This comment has been removed by the author.

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  2. AnonymousJanuary 5, 2023 at 11:20 AM

    Slip16_1: Write a program to find the Square of given number using function interface.
    interface Square {
    int calculate(int x);
    }
    class Slip16_1 {
    public static void main(String args[])
    {
    //you can read value from user
    int a = 5;
    Square s = (int x) -> x * x;
    int ans = s.calculate(a);
    System.out.println(ans);
    }
    }

    Slip16_2: Write a program to design a screen using Awt that,
    import javax.swing.*;
    import java.awt.*;
    class MeEx
    {
    JMenu File;
    JMenu Edit;
    JMenu About;
    JMenuItem i1, i2, i3, i4, i5;
    MeEx(){
    JFrame f= new JFrame("Menu and MenuItem Example");
    JMenuBar mb=new JMenuBar();
    File=new JMenu("File");
    Edit=new JMenu("Edit");
    About=new JMenu("About");
    i1=new JMenuItem("New Ctrl+N");
    i2=new JMenuItem("Open");
    i3=new JMenuItem("Save");
    i4=new JMenuItem("Show About");
    i5=new JMenuItem("Exit");
    File.add(i1); File.add(i2);
    File.add(i3);File.addSeparator();File.add(i4);File.addSeparator();File.add(i5);
    mb.add(File);
    mb.add(Edit);
    mb.add(About);
    f.setJMenuBar(mb);
    f.setSize(400,400);
    f.setLayout(null);
    f.setVisible(true);
    }
    public static void main(String args[])
    {
    new MeEx();
    }
    }

    ReplyDelete