//RandomStars.java

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

public class RandomTriangles {     

    //public void init() {
    public static void main(String[] argv) {

	String input;
	int rows, cols;
	int percent;
	
/*	input = JOptionPane.showInputDialog("Enter #rows (height)");
	rows = Integer.parseInt(input);
	input = JOptionPane.showInputDialog("Enter #columns (width)");
	cols = Integer.parseInt(input);
	input = JOptionPane.showInputDialog("Enter percentage");
	percent = Integer.parseInt(input);
*/	
	JTextArea starstextarea = new JTextArea(10,60);  //optional: rows,cols
	starstextarea.setFont( new Font("Courier",Font.BOLD,18) );
	JScrollPane starsscrollpane = new JScrollPane(starstextarea);
		
	int x1, x2, x3, y1, y2, y3;
	x1 = (int)(Math.random()*100);
	y1 = (int)(Math.random()*100);
	x2 = (int)(Math.random()*100);
	y2 = (int)(Math.random()*100);
	x3 = (int)(Math.random()*100);
	y3 = (int)(Math.random()*100);

	starstextarea.append("("+x1+","+y1+")\n");
	starstextarea.append("("+x2+","+y2+")\n");
	starstextarea.append("("+x3+","+y3+")\n");
	
	double d12, d23, d13;
	d12 = Math.sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));
	d23 = Math.sqrt((x2-x3)*(x2-x3) + (y2-y3)*(y2-y3));
	d13 = Math.sqrt((x1-x3)*(x1-x3) + (y1-y3)*(y1-y3));
	
	starstextarea.append("d12= "+d12+"\n");
	starstextarea.append("d23= "+d23+"\n");
	starstextarea.append("d13= "+d13+"\n");
	
	
	JOptionPane.showMessageDialog(null, 
				      starsscrollpane,
				      "Random Stars",
				      JOptionPane.PLAIN_MESSAGE);

    }
}