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Program: How to search an object from LinkedHashSet?


Description:

Below example shows how to find specific element from LinkedHashSet object.


Code:
package com.java2novice.linkedhashset;

import java.util.LinkedHashSet;

public class MyLhsSearchEx {

	public static void main(String a[]){
		
		LinkedHashSet<String> lhs = new LinkedHashSet<String>();
		//add elements to HashSet
		lhs.add("first");
		lhs.add("second");
		lhs.add("third");
		System.out.println(lhs);
		System.out.println("Does set contains 'first'? "+lhs.contains("first"));
	}
}

Output:
[first, second, third]
Does set contains 'first'? true
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List Of All LinkedHashSet Sample Programs:

  1. Basic LinkedHashSet Operations.
  2. How to delete all elements from LinkedHashSet?
  3. How to add another collection to LinkedHashSet?
  4. How to iterate through LinkedHashSet?
  5. How to compare two LinkedHashSet and retain elements which are same on both LinkedHashSet?
  6. How to copy content of LinkedHashSet to an array?
  7. How to delete specific element from LinkedHashSet?
  8. How to search an object from LinkedHashSet?
  9. How to eliminate duplicate user defined objects from LinkedHashSet?
  10. How to find user defined objects from LinkedHashSet?
  11. How to delete user defined objects from LinkedHashSet?
Knowledge Centre
wait Vs sleep methods
sleep(): It is a static method on Thread class. It makes the current thread into the "Not Runnable" state for specified amount of time. During this time, the thread keeps the lock (monitors) it has acquired.

wait(): It is a method on Object class. It makes the current thread into the "Not Runnable" state. Wait is called on a object, not a thread. Before calling wait() method, the object should be synchronized, means the object should be inside synchronized block. The call to wait() releases the acquired lock.
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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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