java - 反转数组

Question

我刚刚开始使用数组，想知道我必须在这段代码中添加什么才能让数组以相反的顺序打印出来。

import java.util.Scanner;
public class Program10 {

static Scanner keyboard = new Scanner(System.in);

public static void main(String[] args) {

    int[] myArr = {5, 3, 2, 6, 14, 8, 9, 14};
    int[] myArr2 = {6, 7, 8, 9, 10};

    System.out.println("First array before being arranged");
    printArray(myArr);
    rearrangeArray(myArr);
    System.out.println("First array after being arranged");
    printArray(myArr);

    System.out.println("Second array before being arranged");
    printArray(myArr2);
    rearrangeArray(myArr2);
    System.out.println("Second array after being arranged");
    printArray(myArr2);                     

}

public static void printArray(int[] a){

}

public static void rearrangeArray(int[] b){

}
}

Answer 1

public void printRev(int[] x){
   for(int i = x.length-1; i>=0; i--){
      System.out.print(x[i] + " ");
   }
}

在此示例中，您所要做的就是从后到前。