【Java每日一题01】使用java.lang.Math类，生成100个0到99之间的随机整数，找出它们之中的最大者和最小者，并统计大于50的整数个数

package test01; public class RandomNum { public static void main(String[] args) { int number[] = new int[100]; int record = 0; for (int i = 0; i < number.length; i++) { number[i] = (int) Math.round(99 * Math.random()); if (number[i] > 50) { record++; } } System.out.println("大于50的整数有:" + record + "个"); // 给数组排序（冒泡排序） for (int i = 0; i < number.length; i++) { for (int j = 0; j < number.length - i - 1; j++) { if (number[j] < number[j + 1]) { int temp = number[j]; number[j] = number[j + 1]; number[j + 1] = temp; } } } System.out.println("最大的整数:" + number[0]); System.out.println("最小整数" + number[99]); } }

或者

package test01; public class RandomNum2 { public static void main(String[] args) { int min = 99; int max = 0; int temp; int count = 0; for (int i = 0; i < 10; i++) { temp = (int) (Math.random() * 100); // System.out.println(temp); if (temp > 50) { count++; } if (min > temp) { min = temp; } if (max < temp) { max = temp; } } System.out.println("Max is:" + max); System.out.println("Min is:" + min); System.out.println("The count that bigger than 50 is:" + count); } }