Creating a low-resolution of the night sky (...help?)
Greetings everybody =)
My assignment: create a low resolution image of the night sky using +'s as stars and spaces as the space.
-have to use a 2 dimensional array
-can be any type of array
-choose 100 cells at random to be stars
problem: for some reason, I can't print out 100 stars but only 80 :(.. i've been working for a long time on this code with much frustration and with little progress..
UW PICO(tm) 4.10 File: assignment11.java
// Programs purpose: prints out low resolution image of a night sky, using +'s as stars and " " as space.
// Step 1: Create a 80 x 20 2 dimensional array.
// Step 2: Choose 100 random cells to become stars.
// Step 3: Print out the night sky using " " as space and +'s as stars.
public class assignment11
public static void main(String args)
// List of variables
final int scaleOne = 80; // Scale of 80
final int scaleTwo = 20; // Scale of 20
// Create an 80 x 20 2 dimensional array
int nightSky = new int[scaleOne][scaleTwo];
// Randomize 100 cells for the array
int randOne = (int)(Math.random()*scaleOne);
int randTwo = (int)(Math.random()*scaleTwo);
// Set the random 100 cells to be 0
nightSky[randOne][randTwo] = 0;
// Prints out the night sky
for(int row = 0; row < nightSky.length; row++)
// If the random 100 cells are 0
if(nightSky[randOne][randTwo] == 0)
// Display a star for each cell that is zero
for(int col = 0; col < nightSky.length; col++)
// Print out a space for the rest of the cells
I can't seem to find a problem in my code.. It looks like i done everything correctly.
when i try to increase the number of the math.random..., i get a arraysOutofbounds exception.. sigh