Is there any difference between ConcurrentHashMap and Collections.synchronizedMap?

0 votes

What are the differences between Maps returned by Collections.synchronizedMap(Map) and ConcurrentHashMaps? Which one fits which situation?

Dec 26, 2018 in Java by Daisy
• 8,110 points
253 views

1 answer to this question.

0 votes
ConcurrentHashMap: It allows concurrent modification of the Map from several threads without the need to block them.

Collections.synchronizedMap(map): It creates a blocking Map which will degrade performance, albeit ensure consistency (if used properly).
answered Dec 26, 2018 by Sushmita
• 6,890 points

Related Questions In Java

0 votes
2 answers

What is the difference between implements and extends?

Extends : This is used to get attributes ...READ MORE

answered Aug 3, 2018 in Java by samarth295
• 2,200 points
2,591 views
0 votes
1 answer

What is the difference between jdk and jre?

JRE: It stands for Java Runtime Environment. ...READ MORE

answered Apr 20, 2018 in Java by Akrati
• 3,170 points
471 views
0 votes
2 answers

What is the difference between = and equals()?

The equals() method compares the "value" inside String instances ...READ MORE

answered Aug 13, 2018 in Java by Daisy
• 8,110 points
238 views
0 votes
2 answers

What is the difference between Set and List in java?

LIST SET Duplicates YES NO Order Ordered Depends on Implementation Positional Access YES NO List is an ordered sequence ...READ MORE

answered Aug 14, 2019 in Java by Sirajul
• 58,130 points
2,147 views
0 votes
1 answer

difference between wait() and sleep() in java

We can find a big difference between ...READ MORE

answered Apr 25, 2018 in Java by developer_1
• 3,300 points
179 views
0 votes
1 answer

What is the difference between Runnable and extends Thread

Runnable is the preferred way to create ...READ MORE

answered Apr 30, 2018 in Java by sharth
• 3,370 points
299 views
+5 votes
3 answers

How to execute a python file with few arguments in java?

You can use Java Runtime.exec() to run python script, ...READ MORE

answered Mar 27, 2018 in Java by DragonLord999
• 8,450 points

edited Nov 6, 2018 by Omkar 31,450 views
+1 vote
1 answer

How to handle drop downs using Selenium WebDriver in Java

First, find an XPath which will return ...READ MORE

answered Mar 27, 2018 in Selenium by nsv999
• 5,520 points
4,498 views
0 votes
1 answer

What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association?

The annotation @JoinColumn indicates that this entity is the owner of ...READ MORE

answered Oct 18, 2018 in Java by Sushmita
• 6,890 points
10,644 views
0 votes
3 answers

How to check whether a string is empty or not? Is there a function for this?

str != null && str.length() != 0 alternatively str ...READ MORE

answered Sep 11, 2018 in Java by Sushmita
• 6,890 points
245 views