Histogram of random numbers, Java

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//'main' method must be in a class 'Rextester'.
//Compiler version 1.8.0_72

import java.util.*;
import java.lang.*;

class Rextester
{  
    public static void main(String args[])
    {   
        int[] counts = new int[10];   // this array will hold the count for each number (0-9)
        Random rand = new Random();   // the Random object
        
        /* Loop 100 times getting a random number each time, and add to the corresponding count */
        for(int i=0; i<100; i++)
        {
           switch(rand.nextInt(10))
           {
               case 0: counts[0]++; break;
               case 1: counts[1]++; break;
               case 2: counts[2]++; break;
               case 3: counts[3]++; break;
               case 4: counts[4]++; break;
               case 5: counts[5]++; break;
               case 6: counts[6]++; break;
               case 7: counts[7]++; break;
               case 8: counts[8]++; break;
               case 9: counts[9]++; break;
               default: break;
           }
        }
        
        /* Loop 10 times printing the asterisks for each count */
        for(int i=0; i<10; i++)
        {
            System.out.print(i + " ");
            for(int j=0; j<counts[i]; j++)
                System.out.print("*");
            System.out.println();
        }
    }
}

[ + ] Show input
Compilation time: 0.52 sec, absolute running time: 0.13 sec, cpu time: 0.06 sec, memory peak: 19 Mb, absolute service time: 0,66 sec