(USE JAVA LANGUAGE) Kindly modify, add on where it is lacking and execute the java program provided below. Don't forget to provide a screenshot of the program output.
Instructions: (USE JAVA LANGUAGE) Kindly modify, add on where it is lacking and execute the java program provided below. Don't forget to provide a screenshot of the program output.
Stars.java
import java.awt.*;
import java.util.*;
public class Stars {
//private data
private int x; //beginning x coordinate of star cluster
private int height; //height of star cluster (always start from the top of the window, or 0)
private int num; //number of stars in cluster
private int width; //width of star cluster
private boolean fixed = true;
private ArrayList<Integer> lx;
private ArrayList<Integer> ly;
/**
* The only constructor for the class,
* initializes all the private data,
*
@param
int x, int y, int number, int w
*/
public Stars (int x, int y, int number, int w) {
this.x = x;
height = y;
num = number;
width = w;
lx = new ArrayList<Integer>();
ly = new ArrayList<Integer>();
Random rand = new Random();
for (int i = 0; i < num; i++) {
//save the current starts
lx.add(rand.nextInt(width)+x);
ly.add(rand.nextInt(height));
}
}
public void setFixed(boolean f) {fixed = f;}
/** Draws a star cluster relative to the x, height, num, width
@param
Graphics page
*
@return
n/a
*/
public void draw (Graphics page) {
page.setColor(Color.white);
Random rand = new Random();
//draws the amount of randomly placed stars specified by user
for (int i = 0; i < num; i++) {
//the random coordinates are generated to be within specified area given the height, width, and beginning of star cluster
//all stars are little tiny squares
if (fixed) {
page.fillRect(lx.get(i), ly.get(i), 2, 2);
if (i%10 == 0) {
page.drawLine(lx.get(i)+x-4,ly.get(i), lx.get(i)+x+4, ly.get(i));
page.drawLine(lx.get(i)+x,ly.get(i)-4, lx.get(i)+x, ly.get(i)+4);
}
}
else {
lx.set(i, rand.nextInt(width));
ly.set(i, rand.nextInt(height));
page.fillRect(lx.get(i)+x, ly.get(i), 2, 2);
//bigger star - in the shape of a tiny cross for variety
//generated randomly in the same way as the stars above
int xStar = rand.nextInt(width)+x;
int yStar = rand.nextInt(height);
//horizantal line
page.drawLine(xStar+x-4,yStar, xStar+x+4, yStar);
//vertical line
page.drawLine(xStar+x,yStar-4, xStar+x, yStar+4);
}
}
}
}
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