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);

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);

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Random Access

Random access is generally known as direct access. Random access is the capability to have access to any item from a given population of elements at random. Sequential access is the direct opposite of random access. In random access, the elements can be retrieved irrespective of the location. In order to move from point A to Z, you can just jump to point Z in random access system. The disk is an example of random access.

Question

100%

What would be the output generated by the following code?
import java.util.concurrent.*;
public class Main {
public static void main (String[] args)
{
new ConcurrentHashMap ();
ConcurrentHashMap chm =
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) ;
}

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