Dont know where to start on this Java Code using loops!! Help Please

Write a program to generate 100 random integers
in the range of 0 and 99999, nd the frequency count of each digit (0, 1, 2, . . . , 9) in these numbers,
and print a frequency histogram.

This is what I have so far:
import java.util.Scanner;
public class PA6 {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

int num;
int freq1, freq2, freq3, freq4, freq5, freq6, freq7, freq8, freq9;
int digit;


num = (int)(Math.random()*99999);

while (num > 0) {
digit = num % 10;
num = num / 10;


}


}

}

And what exactly does that code do? Does it compile? Does it run? What's missing from it?

Please use the highlight tags when posting code.

For starters,
a) use random inside the while loop
b) have a counter inside while loop increase till 100 and break