package day02;
import java.util.Arrays;
/*
数组:
固定长度
相同类型
*/
public class Demo05 {
public static void main(String[] args) {
int[] ids = {1001, 1002, 1003, 1004};
System.out.println(ids[0]);
System.out.println(ids[1]);
System.out.println(ids[2]);
System.out.println(ids[3]);
// System.out.println(ids[4]); // ArrayIndexOutOfBoundsException
String[] names = {"aaa", "bbb", "ccc", "ddd"};
System.out.println(names.length); // 长度
// 数组的遍历,for循环,使用索引遍历
for (int i = 0; i < names.length; i++) {
System.out.println("hello," + names);
}
// foreach,每次取数组中的一个元素
for (String name : names) {
System.out.println("hello," + name);
}
// 取数组中的最大值/最小值
int[] nums = {10, 6, 10, 8, 100, 70, 60, 30};
int max = nums[0];
for (int i = 1; i < nums.length; i++) {
if (nums > max) {
max = nums;
}
}
System.out.println("最大值为: " + max);
int min = nums[0];
for (int i = 1; i < nums.length; i++) {
if (nums < min) {
min = nums;
}
}
System.out.println("最小值为: " + max);
|