generate random numbers

public static void main(String[] args) {
// TODO Auto-generated method stub
Integer len =7;
Random random = new Random(); 
for(int i=0;i<1000;i++){
int r = random .nextInt(len);
System.out.println(r);
}
}

produces integers up to 7, 0, 1, 2, 3, 4, 5 , 6.

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