实验3 方法和数组(4)

import java.util.*; public class LX3_14 { } public static String convertMillis(long mills) { } long a = mills / 3600000; long b = (mills - a * 3600000) / 60000; long c = (mills - a * 3600000 - b * 60000) / 1000; return (a + \ + b + \ + c); /* 转换为String类型 1.i+\空或字符串\public static void main(String[] args) { } Scanner input = new Scanner(System.in); System.out.println(\请输入毫秒数：\); long i = input.nextLong(); System.out.println(convertMillis(i)); String.valueOf(i);*/ 运行结果贴图： 6.13

程序代码： public class LX3_15 { } public static int getRandom(int... numbers) { } int s = (int) (1 + Math.random() * 54); for (int i = 0; i < numbers.length; i++) { } return s; int a = numbers[i] - s; if (a == 0) { } s = getRandom(numbers); public static void main(String[] args) { } int[] a = { 1, 4, 13, 51 }; System.out.println(getRandom(a)); 运行结果贴图：

6.26 程序代码： import java.util.*; public class LX3_16 { } public static void compare(int[] ch1, int[] ch2) { } int s = 0; if (ch1.length == ch2.length) { for (int i = 0; i < ch1.length; i++) { } System.out.println(\); System.out.println(\); s = ch1[i] - ch2[i]; if (s != 0) { } System.out.println(\); System.exit(0); public static int[] creatArray() { } int length = 0; Scanner input = new Scanner(System.in); length = input.nextInt(); int[] a = new int[length]; for (int i = 0; i < a.length; i++) { } return a; a[i] = input.nextInt(); public static void main(String[] args) { } System.out.println(\); int[] list1 = creatArray(); System.out.println(\); int[] list2 = creatArray(); compare(list1, list2); } else 运行结果贴图：

7.1 程序代码： import java.util.*; public class LX3_17 { /** * @param args */ public static void main(String[] args) { System.out.println(\); System.out.println(\ + add(creatArrays())); } public static int[][] creatArrays() { int[][] array1 = new int[4][4]; Scanner input = new Scanner(System.in); for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { array1[i][j] = input.nextInt(); }

} return array1; } public static int add(int[][] list) { int sum = 0; for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { sum = sum + list[i][j]; } } return sum; } } 运行结果贴图： 7.2 程序代码： import java.util.*;

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