Question

ਉ.
ਵਿੰਡੋਜ਼- ਐਕਸਪਲੋਰਰ ਦੇ ਦੋ ਪੇਨ ਹੁੰਦੇ ਹਨ। ਇਹ ਹਨ_____
ਅਤੇ _______ .
1. ਪਹਿਲਾ, ਦੂਜਾ) 2. (ਖੱਬਾ, ਸੱਜਾ) 3. (ਉੱਪਰਲਾ, ਹੇਠਲਾ) (ਫ਼ਾਈਲ ਫ਼ੋਲਡਰ)
​

Answer 1

Explanation:

You are attempting questio

What would be the output generated by the following code?

import java.util.concurrent.+;

public class Main {

public static void main(String[] args)

{

ConcurrentHashMap chm = new ConcurrentHashMap();

chm.put(1, "Welcome");

chm.put (2, "to");

chm.put(3, "Java");

chm.put(4, "World");

chm.putIfAbsent (3, "World");

System.out.println("Elements: " + chm);

chm.remove (2, "Welcome");

System.out.println("Elements after key 2 is removed: "+chm);

chm. putIfAbsent (3, "Java's");

System.out.println("Add new: "+chm);

chm.replace(3, "Java", "Java New");

System.out.println("After Replacing: "+ chm);

}