This is a Leet Code problem solved in Java, the problem description is:

This is a Leet Code problem solved in Java, the problem description is:
volatile keyword in Java is field modifier while synchronized modifies code blocks and methods. synchronized acquires and releases locks on entire code block or method
An option to create new Dynamic Web Application is missing/ not available in any version of the Eclipse. Follow the below steps to fix the problem:
public static void printMap(Map mp) { Iterator it = mp.entrySet().iterator(); while (it.hasNext()) { Map.Entry pair = (Map.Entry) it.next(); System.out.println(pair.getKey() + ” = ” +
The main reason you’d do this is to decouple your code from a specific implementation of the interface. When you write your code like this:
We heard a lot about REPL when we were developing AngularJS app or NodeJS app. Which works on Read-Evaluate-Print-Loop mechanism. Java Shell tool is an interactive