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Java program for String operations in swing

JAVA PROGRAM FOR String Operations in swing:

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

/*<applet code="StrOp" width=400 height=400></applet>*/

public class StrOp extends JApplet implements ActionListener
{
        JTextField text5;
       JTextField text4;
        JTextField text3;
       JTextField text2;
        JTextField text1;
        public void init()
        {
                Container contentPane=getContentPane();
                contentPane.setLayout(new GridLayout(5,2,40,40));
                JLabel enter=new JLabel("Enter String:");
                contentPane.add(enter);
                text1=new JTextField();
                contentPane.add(text1);
                JButton lower=new JButton("LOWER");
                lower.addActionListener(this);
                contentPane.add(lower);
                text2=new JTextField();
                contentPane.add(text2);
                JButton upper=new JButton("UPPER");
                upper.addActionListener(this);
                contentPane.add(upper);
                text3=new JTextField();
                contentPane.add(text3);
                JButton italic=new JButton("ITALIC");
         
                 italic.addActionListener(this);
                contentPane.add(italic);
                text4=new JTextField();
                text4.setFont(new Font("TimesNewRoman",Font.ITALIC,12));
                contentPane.add(text4);
                JButton bold=new JButton("BOLD");
                bold.addActionListener(this);
                contentPane.add(bold);
                text5=new JTextField();
                text5.setFont(new Font("TimesNewRoman",Font.BOLD,12));
                contentPane.add(text5);
       }
       public void actionPerformed(ActionEvent e)
       {
                String str=text1.getText();
                if(e.getActionCommand()=="LOWER")
                        text2.setText(str.toLowerCase());
                else if(e.getActionCommand()=="UPPER")
                        text3.setText(str.toUpperCase());
                else if(e.getActionCommand()=="ITALIC")
                        text4.setText(str);
                else if(e.getActionCommand()=="BOLD")
                        text5.setText(str);
       }
}












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OUTPUT
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Enter String     :  vijay

Lower              :  vijay

Upper              :  VIJAY
Italic                :  vijay
Bold                :   vijay