Java统计50个10到50之间整数的随机出现次数

Z时代
2024-01-10
分类：IT

随机产生50个10到50的整数，统计每个数字各出现几次，出现0次的数字不打印。

代码如下：


package com.homework.lhh;
import java.util.Random;
public class Ex04 {
  public static void main(String[] args) {
    int[] array = new int[50];
    Random random = new Random();
    for (int i = 0; i < array.length; i++) {
      array[i] = random.nextInt(41) + 10;
      System.out.print(array[i] + " ");
    }
    for (int i = 0; i < array.length - 1; i++) {
      for (int j = 0; j < array.length - i - 1; j++) {
        if (array[j] > array[j + 1]) {
          int tmp = array[j];
          array[j] = array[j + 1];
          array[j + 1] = tmp;
        }
      }
    }
    System.out.println();
    //为了方便直观的统计
    System.out.println("冒泡排序后的数组为：");
    for (int i = 0; i < array.length; i++) {
      System.out.print(array[i] + " ");
    }
    /*
     * for (int i = 0; i < array.length; i++) { if(0 == array[i]){ continue;
     * } if(array[i] == array[i+1]){ conut++; } System.out.println();
     * System.out.print( array[i] + "出现的次数为："+ (conut+1) +" 次"); conut = 0;
     * }
     */
    // 查找
    System.out.println();
    for (int i = 0; i < array.length; i++) {
      int conut = 0;// 定义每一个数出现的次数
      for (int j = 0; j < array.length; j++) {
        if (array[i] == array[j]) {
          conut++;
        }
      }
      if (i < 49 && array[i] != array[i + 1] && conut != 0) {
        System.out.println(array[i] + "出现的次数为：" + conut + " 次");
      }
      if(i == 49){
        System.out.println(array[i] + "出现的次数为：" + conut + " 次");
      }
    }
  }
}