Class-Activity/adder.java at master · DevaGaneshB/Class-Activity · GitHub

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// A Java program to demonstrate random number generation
// using java.util.Random;
import java.util.Random;
import javax.swing.*;
import java.io.*;
import java.awt.event.*;
public class adder{

	 String s1="";
	 String s2="";
	int[] sum= new int[3];
	adder(){

    	for(int i=0;i<3;i++)
    	{
        // create instance of Random class
        Random rand = new Random();

        // Generate random integers in range 0 to 99
        int rand_int1 = rand.nextInt(100);
        int rand_int2 = rand.nextInt(100);
        sum[i]=rand_int1+rand_int2;
        s1=s1+Integer.toString(rand_int1)+"\t"+Integer.toString(rand_int2)+"\n";
        s2=s2+Integer.toString(rand_int1)+"\t"+Integer.toString(rand_int2)+"\t"+Integer.toString(sum[i])+"\n";
        // Print random integers
    	}
	}
    public void print(String n){
		try {

        	PrintWriter fout;
		fout = new PrintWriter("Data.xls");
		fout.write("A"+"\t"+"B"+"\n");
    	fout.write(n);
    	fout.close();
		} catch (FileNotFoundException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}


    	}
    public void print1(String n1) {
		try {

        	PrintWriter fout;
			fout = new PrintWriter("Data.xls");
			fout.write("A"+"\t"+"B"+"\t"+"SUM"+"\n");
        	fout.write(n1);

        	fout.close();
		} catch (FileNotFoundException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}


    	}


    public static void main(String args[])
    {
    	adder a=new adder();
    	 JFrame f=new JFrame("Button Example");
    	    JButton b=new JButton("Generate");
    	    JButton b1=new JButton("Sum");
    	    b.setBounds(50,100,95,30);
    	    b1.setBounds(50,200,95,30);

    	    f.add(b);
    	    f.add(b1);
    	    f.setSize(400,400);
    	    f.setLayout(null);
    	    f.setVisible(true);

        b.addActionListener(new ActionListener(){
        	public void actionPerformed(ActionEvent e){

        	        a.print(a.s1);

        	}
	    });


        b1.addActionListener(new ActionListener(){
        	public void actionPerformed(ActionEvent e){

        	      a.print(a.s2);

        	}
	    });

       }

}