1、实际调用removeElement()方法 2、向调用者返回删除结果 removeElement(Object)方法分析 public synchronized boolean removeElement(Object obj) { modCount++; int i = indexOf(obj); if (i >= 0) { removeElementAt(i); return true; } return false; } 1. 2. 3. 4. 5. 6. 7. 8. 9. 用于...
class Solution { public: int removeElement(vector<int>& v, int val) { for (auto it = v.begin(); it != v.end(); it++) { if (*it == val) { // 条件语句 v.erase(it); // 移除他 it--; // 让该迭代器指向前一个 } } return v.size(); } }; 1. 2. 3. 4. 5. 6....
This method is identical in functionality to the#remove(Object)method (which is part of theListinterface). Java documentation forjava.util.Vector.removeElement(java.lang.Object). Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used acco...
public synchronized E remove(int index) { // 修改次数增加 modCount++; // 合法性判断 if (index >= elementCount) throw new ArrayIndexOutOfBoundsException(index); // 保存原来的数据 E oldValue = elementData(index); // 移动的个数 int numMoved = elementCount - index - 1; // 如果移动个...
remove(int)方法分析 public synchronized E remove(int index) { modCount++; if (index >= elementCount) throw new ArrayIndexOutOfBoundsException(index); E oldValue = elementData(index); int numMoved = elementCount - index - 1; if (numMoved > 0) ...
删除元素33vec.remove(2);//删除索引 2 处的元素34qDebug() <<"QVector after removing the element at index 2:";35for(inti =0; i < vec.size(); ++i) {36qDebug() <<vec.at(i);37}3839//查找元素40intindex = vec.indexOf(4);41if(index != -1) {42qDebug() <<"Element 4 ...
The previous R code takes a subset of our original vector by retaining only values that are not NA, i.e. we extract all non-NA values. Example 2: Remove NA within Function via na.rm Another possibility is the removal of NA values within a function by using the na.rm argument. For ...
如果仅删除第⼀个特定值元素: std::vector Elem coll; //remove first element with value val std::vectorElem::iterator pos; pos = find(coll.begin(), coll.end(), val); if (pos != coll.end()) { coll.erase(pos); } 4.代码实例(⼀道⽜客⽹练习题) 内容: 输⼊两⾏字符c[ ]...
Vector中boolean removeElement(Object obj) 是什么意思？Vector中boolean removeElement(Object obj) 是...
clear(); // Remove all elements 所以容量还是 100。 std::vector<int> data(100, 99); // Contains 100 elements initialized to 99 data.pop_back(); // Remove the last element //假设要删除 data 中的第二个元素 std::swap(std::begin(data)+1,std::end(data)-1); data.pop_back(); /...