PriorityQueue in Java 8 How to Sort HashSet in Java Java Array to Set How to sort HashMap in java by keys and values How to remove duplicates from ArrayList in java Difference between HashMap and HashSet in java Print HashMap in Java Create ArrayList of Objects in JavaAuthor...
Hashset.Contains? Fastest way to iterate through an IEnumerable<T> Fastest way to read a huge csv file and plot the values Fastest way to serialize and deserilze complex Objects to XML fatal error C1084: Cannot read type library file: xxx.tlb': Error loading type library/DLL Fatal error ...
Set <String> textSet = new HashSet <String> (); textSet.addAll(text); The next step, now that we have the set, is to create an iterator that will check how many copies of each element from the set can be found in the list: Iterator iterator = textSet.iterator(); Using the ...
In this article, I'll show you an example of both ways and how they work in Java. You'll also learn a little bit aboutjava.util.ConcurrentModificationException, which is a common problem for non-concurrent collection classes likeArrayListorHashMap. Though, if you are entirely new to Java ...
import java.util.*; import java.util.function.Predicate; class Main { // Generic method to remove elements from a list in Java public static <T> void filterList(List<T> list, Predicate<T> condition) { Set<T> toRemove = new HashSet<>(); for (T item: list) { if (condition.test...
Hashset.Contains? Fastest way to iterate through an IEnumerable<T> Fastest way to read a huge csv file and plot the values Fastest way to serialize and deserilze complex Objects to XML fatal error C1084: Cannot read type library file: xxx.tlb': Error loading type library/DLL Fatal error...
HashSet<int> toRemove = new HashSet<int>(); foreach (int item in list) { if (item % 2 == 0) { // 删除偶数元素 toRemove.Add(item); } } list.RemoveAll(toRemove.Contains); Console.WriteLine(String.Join(',', list)); } } /* 输出: 1,3,5,7,9 */ 下载 运行代码 这就是在...
import java.util.function.Predicate fun <T> filter(list: MutableList<T>, predicate: Predicate<T>) { val toRemove = HashSet<T>() for (item in list) { if (predicate.test(item)) { toRemove.add(item) } } list.removeAll(toRemove) } fun main() { val nums: MutableList<Int> = (1....
importjava.util.function.Predicate fun<T>filter(list:MutableList<T>,predicate:Predicate<T>){ valtoRemove=HashSet<T>() for(iteminlist) { if(predicate.test(item)){ toRemove.add(item) } } list.removeAll(toRemove) } funmain(){ valnums:MutableList<Int>=(1..10).toMutableList() ...