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Program: How to create synchronized map?


Description:

The Map is not synchornized (not thread-safe). Collections.synchronizedMap() method returns a synchronized (thread-safe) map backed by the specified map. In order to guarantee serial access, it is critical that all access to the backing map is accomplished through the returned map.


Code:
package com.java2novice.collections;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

public class MySyncMap {

	public static void main(String a[]){
		
		Map<String,String> mp = new HashMap<String,String>();
		Map<String,String> sysMapt = Collections.synchronizedMap(mp);
		System.out.println("Synchronized map got created...");
	}
}

Output:
Synchronized map got created...
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  29. How to create synchronized map?
Knowledge Centre
What is transient variable?
Transient variables cannot be serialized. During serialization process, transient variable states will not be serialized. State of the value will be always defaulted after deserialization.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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