算法第四版1.1.11

就这样

package com.zzh;

import edu.princeton.cs.algs4.StdOut;
import edu.princeton.cs.algs4.StdRandom;

public class Test {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        boolean[][] a= new boolean[6][2];
        randomRank(a);
        initial(a);
    }
    public static boolean[][] randomRank(boolean[][] a) {
        for(int i=0;i<a.length;i++) {
            for(int j=0;j<a[i].length;j++) {
                if (StdRandom.bernoulli(0.5))    a[i][j]=true;
                else a[i][j]=false;
            }
        }
        return a;
    }
    public static void initial(boolean[][] a) {
        for(int i=0;i<a.length;i++) {
            for(int j=0;j<a[i].length;j++) {
                StdOut.print("第"+i+"行第"+j+"列的元素为：");
                StdOut.println(a[i][j]==true?"*":" ");
            }
        }
        
    } 
    
}