foreach循环
它能在不使用下标的情况下遍历数组。
public class TestArray { public static void main(String[] args) { double[] myList = {1.0, 2, 3, 3}; // 打印所有数组元素 for (double element: myList) { System.out.println(element); } } }数组倒序 public class Test2 { public static void main(String[] args){ int[] test= {1,2,4,5,7}; for (int i : test) { System.out.print(i+" "); } System.out.println("\n"); test = Test2.reverse(test); for (int i : test) { System.out.print(i+" "); } } public static int[] reverse(int[] arr){ int[] resoult = new int[arr.length]; for (int i = 0,j=resoult.length-1; i < arr.length; i++,j--) { resoult[j] = arr[i]; } return resoult; } }
