【JAVA学习路-think in java】p42：random特点研究

package pkg;
// learn about Random
import java.util.*;// NEEDED for class of Random

public class p42 {

	public static void main(String[] args) {
		
		Random ran=new Random(914);// definite SEED number will produce a constant  consquence
		System.out.println("ran="+ran);
		int i=ran.nextInt(20);
		int j=ran.nextInt(100);
		int k=ran.nextInt(100000);
		
		System.out.println("i="+i);
		System.out.println("j="+j);
		System.out.println("k="+k);
		
	}
	
	
}


output:
ran=java.util.Random@6d06d69c
i=10
j=86
k=62413