Java Slip2 Program 1 | TYBcs | B.Sc. Computer Science - IProgramX

Q. Write a menu driven program to the following operations on a set of integers as shown in the following  figure. The load operation should generate 10 random integers (2 digits) and display the numbers on the screen. The save operation should save the numbers to a file “numbers.txt”. The Sort menu provides various operations and the result is displayed on the screen.

Program:

import java.io.*;
import java.lang.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.math.*;
class Slip2Prog1 extends JFrame implements ActionListener
{
JMenuBar mbar;
JMenu operation,sort;
JMenuItem load,save,exit;
JMenuItem asc,dsc;
JTextField tf;
int n=10,ch;
int arr[];
Slip2Prog1()
{
arr = new int[10];
setLayout(new BorderLayout());
mbar=new JMenuBar();
operation=new JMenu("Operation");
sort=new JMenu("Sort");
load=new JMenuItem("Load");
save=new JMenuItem("Save");
exit=new JMenuItem("Exit");
asc=new JMenuItem("Ascending");
dsc=new JMenuItem("Descending");
tf = new JTextField(50);
operation.add(load);
operation.add(save);
operation.add(exit);
sort.add(asc);
sort.add(dsc);
mbar.add(operation);
mbar.add(sort);
setJMenuBar(mbar);
add(tf,BorderLayout.SOUTH);
setTitle("Menus and sub-menus ");
setSize(500,500);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
load.addActionListener(this);
save.addActionListener(this);
exit.addActionListener(this);
asc.addActionListener(this);
dsc.addActionListener(this);
}
public void actionPerformed(ActionEvent e)
{
if(e.getActionCommand().equals("Load"))
{
tf.setText("");
Random random = new Random();
for(int i=0;i<n;i++)
arr[i] = random.nextInt(100) + 1;
for(int i=0;i<n;i++)
tf.setText(tf.getText()+","+arr[i]);
}
if(e.getActionCommand().equals("Save"))
{
try{
BufferedWriter outputWriter = new BufferedWriter(new FileWriter("numbers.txt"));
for(int i=0;i<n;i++)
outputWriter.write(arr[i]+",");
outputWriter.close();
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
if(e.getActionCommand().equals("Exit"))
{
dispose();
}
if(e.getActionCommand().equals("Ascending"))
{
int temp;
for(int i=0;i<n;i++)
{
for(int j=0;j<n-1;j++)
{
if(arr[j] > arr[j+1])
{
temp=arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;
}
}
}
tf.setText("");
for(int i=0;i<n;i++)
tf.setText(tf.getText()+","+arr[i]);
}
if(e.getActionCommand().equals("Descending"))
{
int temp;
for(int i=0;i<n;i++)
{
for(int j=0;j<n-1;j++)
{
if(arr[j] < arr[j+1])
{
temp=arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;
}
}
}
tf.setText("");
for(int i=0;i<n;i++)
tf.setText(tf.getText()+","+arr[i]);
}
}
public static void main(String args[])
{
new Slip2Prog1();
}
}