摘要：
public class Demo09_Array { public static void main(String[] args) { int[] arr = { 5, 9, 4, 88, 5 }; int index = getIndex(arr, 88); System.out.println 阅读全文
摘要：
import java.util.Scanner; public class Demo08_Array { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println 阅读全文
摘要：
public class Demo07_Array { public static void main(String[] args) { int[] arr = { 1, 5, 6, 8, 9, 7 }; rev(arr); } public static void rev(int arr[]) { 阅读全文