JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to remove an element from collection using Iterator object?


Description:

Below example shows how to remove an element from collection object using Iterator object. The remove() method removes from the underlying collection the last element returned by the iterator


Code:
package com.java2novice.iterator;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class MyItrRemoveElement {

	public static void main(String a[]){
		
		String removeElem = "Perl";
		List<String> myList = new ArrayList<String>();
		myList.add("Java");
		myList.add("Unix");
		myList.add("Oracle");
		myList.add("C++");
		myList.add("Perl");
		System.out.println("Before remove:");
		System.out.println(myList);
		Iterator<String> itr = myList.iterator();
		while(itr.hasNext()){
			if(removeElem.equals(itr.next())){
				itr.remove();
			}
		}
		System.out.println("After remove:");
		System.out.println(myList);
	}
}

Output:
Before remove:
[Java, Unix, Oracle, C++, Perl]
After remove:
[Java, Unix, Oracle, C++]
<< Previous Program 

List Of Iterator Sample Programs:

  1. How to iterate through collection objects?
  2. How to remove an element from collection using Iterator object?
Knowledge Centre
What is System.out in Java
In System.out, out is an instance of PrintStream. It is a static member variable in System class. This is called standard output stream, connected to console.
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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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