java remove map
map.entrySet().removeIf(e -> <boolean expression>);java remove map
map.entrySet().removeIf(e -> <boolean expression>);java remove map key
/*Suppose a map*/
Map<T> map = new HashMap<>();
/*Insert 2 keys, and remove one*/
map.put('First', 'John');
map.put('Second', 'Tommy');
// Returns a value, you don't have to save it if you want
String removedValue = map.remove('First');Removing Elements in java map
// Java program to demonstrate
// the working of Map interface
import java.util.*;
class Main {
public static void main(String args[])
{
// Initialization of a Map
// using Generics
Map<Integer, String> hashmap1= new HashMap<Integer, String>();
// Inserting the Elements
hashmap1.put(1, "Apple");
hashmap1.put(2, "Banana");
hashmap1.put(3, "Mango");
// Initial Map
System.out.println("Initial Map :"+hashmap1+"\n");
hashmap1.remove(new Integer(2));
// Final Map
System.out.println("Updated Map :"+hashmap1);
}
}Copyright © 2021 Codeinu
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