= arr[i],则将原数组arr[i]赋值给新索引位置arr[++index]; 遍历到最后返回index时,需要将其值加1,因为索引是从0开始。 时间复杂度为o(n),空间复杂度为o(1) 代码 privatestaticintremoveDuplicates(int[] arr){//考虑空数组if(arr.length ==0)return0;intindex=0;for(inti=1; i < arr.length; i+...
}varresult = arrayRemove(array, 6);//result = [1, 2, 3, 4, 5, 7, 8, 9, 0] 8. Explicitly Remove Array Elements Using the Delete Operator varar = [1, 2, 3, 4, 5, 6];deletear[4];//delete element with index 4console.log( ar );//[1, 2, 3, 4, undefined, 6]alert(...
在这个示例中,原数组array包含了5个元素,我们通过创建一个长度为4的新数组newArray,将array中的前4个元素复制到newArray中,然后将newArray赋值给array,实现了删除最后一个元素的效果。 方法二:使用ArrayList 另一种方法是使用Java提供的ArrayList类。ArrayList是一个动态数组,它实现了List接口,可以根据需要动态调整大小。
Java Code: // Import the Arrays class from the java.util package.importjava.util.Arrays;// Define a class named Exercise7.publicclassExercise7{// The main method where the program execution starts.publicstaticvoidmain(String[]args){// Declare and initialize an integer array 'my_array'.int[...
public E remove(int index) { rangeCheck(index); modCount++; E oldValue = elementData(index); int numMoved = size - index - 1; if (numMoved > 0) System.arraycopy(elementData, index+1, elementData, index, numMoved); elementData[--size] = null; // clear to let GC do its work ...
System.arraycopy(elementData, index+1, elementData, index, numMoved); elementData--size = null; // clear to let GC do its work return oldValue; 如果在for循环中调用了多次ArrayList.remove(),那代码执行结果是不准确的,因为每次每次调用remove函数,ArrayList列表都会改变数组长度,被移除元素后面的元素位置...
JavaArray<T>.IList<T>.RemoveAt(Int32) Method Reference Feedback Definition Namespace: Java.Interop Assembly: Java.Interop.dll void IList<T>.RemoveAt(int index); Parameters index Int32 Implements RemoveAt(Int32) Remarks Portions of this page are modifications based on...
returns the removed element ifindexis passed as parameter Note: If the specified index is out of range, the method throwsIndexOutOfBoundsException. Example 1: Remove the Specified Element from the ArrayList importjava.util.ArrayList;classMain{publicstaticvoidmain(String[] args){// create an Array...
System.arraycopy(elementData, index+1, elementData, index, numMoved); elementData[--size] = null; // clear to let GC do its work return oldValue; } 如果在for循环中调用了多次ArrayList.remove(),那代码执行结果是不准确的,因为每次每次调用remove函数,ArrayList列表都会改变数组长度,被移除元素后面的元...
length;i++){ if (nums[i]>currentValue){ nums[fixedIndex] = nums[i]; currentValue = nums[i]; fixedIndex+=1; } } return fixedIndex; } } 题目信息 Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place such that each unique element appears only ...