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
Class, Constructor and Primitive data types
Class is a template for multiple objects with similar features and it is a blue print for objects. It defines a type of object according to the data the object can hold and the operations the object can perform. Constructor is a special kind of method that determines how an object is initialized when created. Primitive data types are 8 types and they are: byte, short, int, long, float, double, boolean, char.
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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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