java编程怎么编?

利用Random类来产生5个50~100之间的随机整数。输出它的二进制、八进制和十六进制表示形式。怎么编?

package Test07;

import java.util.Random;

public class Test01 {
    public static void main(String[] args) {
        Random rand = new Random();
        int[] num = new int[5];
        for (int i = 0; i < num.length; i++) {
            // 随机产生50~100的随机数
            num[i] = 50 + rand.nextInt(111);
            // 输出进制
            System.out.println(num[i]);
            System.out.println(num[i] + "二进制为:" + Integer.toBinaryString(num[i]));
            System.out.println(num[i] + "八进制为:" + Integer.toOctalString(num[i]));
            System.out.println(num[i] + "十六进制为:" + Integer.toHexString(num[i]));
        }

    }
}

结果

img


望采纳,谢谢!

代码如下:


package com.ck.test;

import java.util.Random;

public class TestSample {
    public static void main(String[] args) {
        Random random =new Random();
        for(int i=0;i<5;i++){
            System.out.print("十进制:\t");
            System.out.println(internalNextInt(random,50,101));
            System.out.print("二进制:\t");
            System.out.println(Integer.toBinaryString(internalNextInt(random,50,101)));
            System.out.print("八进制:\t");
            System.out.println(Integer.toOctalString(internalNextInt(random,50,101)));
            System.out.print("十六进制:\t");
            System.out.println(Integer.toHexString(internalNextInt(random,50,101)));
            System.out.println("--------------------------");
        }

    }

    public static int internalNextInt(Random random, int origin, int bound){
        if (origin < bound) {
            int n = bound - origin;
            if (n > 0) {
                return random.nextInt(n) + origin;
            }
            else {  // range not representable as int
                int r;
                do {
                    r = random.nextInt();
                } while (r < origin || r >= bound);
                return r;
            }
        }
        else {
            return random.nextInt();
        }
    }
}

执行结果如下:

十进制:    79
二进制:    1000011
八进制:    114
十六进制:    5e
--------------------------
十进制:    75
二进制:    1010101
八进制:    126
十六进制:    55
--------------------------
十进制:    55
二进制:    110101
八进制:    67
十六进制:    64
--------------------------
十进制:    86
二进制:    111101
八进制:    126
十六进制:    50
--------------------------
十进制:    93
二进制:    1001101
八进制:    125
十六进制:    34
--------------------------

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