方法二:使用Collections工具类实现数组反转 publicvoidreverseArray(int[]arr){List<Integer>list=Arrays.stream(arr).boxed().collect(Collectors.toList());Collections.reverse(list);for(inti=0;i<arr.length;i++){arr[i]=list.get(i);}} 1. 2. 3. 4. 5. 6. 7. 上面的代码示例中,我们先将数组...
Array.prototype.myReverse=function(){if(thisinstanceofArray){//数组varlen=this.length,i=len-1;varres=[];//定义一个数组for(i;i>=0;i--){res.push(this[i]);}this.length=0;//清空原数组Array.prototype.splice.apply(this,[0,0,res]);//将新结果插入到原数组中,这里用apply方法很适用}else...
int[] array = {1, 2, 3}; Collections.reverse(Arrays.asList(array)); //Does not reverses the array 2. Swapping Array Elements in For Loop Another simple and straightforward way is to iterate through the array swapping them from the beginning position with the elements in the last position...
* arr:字符串数组 * len:长度 **/functionchangeStr(arr,len){if(len>1){for(vari=0;i<len-1;i++){vartemp=arr[i];arr[i]=arr[i+1];arr[i+1]=temp;}len--;changeStr(arr,len);}}
public static void main (String[] args) throws java.lang.Exception { int[] a= {1,2,4,5}; System.out.println( Arrays.toString(reverseArray(a))); } public static int[] reverseArray(int[] nums){ int begin=0; int end= nums.length -1;while(begin <end){ ...
# reverse an array using reverse() method arr.reverse() print("Reversed array is:", arr) Output: 1 2 3 4 Original array is: array('i', [10, 20, 30, 40, 50, 60]) Reversed array is: array('i', [60, 50, 40, 30, 20, 10]) Using a reversed() built-in function. Here,...
java.lang.reflect.Array提供以下几类静态方法操作: Array.newInstance() :创建引用类型的数组 Array.set()和Array.get() :根据索引,设置和获取指定数组(所有类型的数组)元素的值。 Array.setXxxx()和Array.getXxxx() :根据索引,设置和获取指定数组(基本数据类型的数组)元素的值。 Xxxx :8中基本数据类型 boolean...
If we want to make a function to reverse a given array, we can use aforloop and thelengthfunction in JavaScript. Thelengthfunction returns the number of elements of a given array. To make our function work, we have to get each element of the given array from the end, store it at th...
( myArray );// Reverses the sort of the values of the Array.Array.Reverse( myArray );// Displays the values of the Array.Console.WriteLine("After reversing:"); PrintIndexAndValues( myArray ); }publicstaticvoidPrintIndexAndValues( Array myArray ) {for(inti = myArray.GetLowerBound(0); ...
java中foreach遍历: 1intarr[]={1,2,3};2for(intx:arr){//数据类型 新定义的数组名 :要遍历的数组名3System.out.println(x);4}; php中遍历索引数组: 1$attr=array(1,2,3,4,"aa");2foreach($attras$value) {3echo$value."";4}; 效果:...