clear() Method : Java.util.ArrayList
Declaration :
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public void clear() |
Explanation :
| Purpose | Method will remove all of the elements from this list.The list will be empty after call |
| Parameters | NA |
| Return Value | NA |
| Exception | NA |
Example
The following example shows the usage of java.util.ArrayList.clear() method.
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package com.c4learn.arraylist; import java.util.ArrayList; public class ArrayListExamples { public static void main(String args[]) { // Create ArrayList 1 ArrayList<String> arrlist1 = new ArrayList<String>(5); // Fill Elements in ArrayList 1 arrlist1.add("A"); arrlist1.add("B"); arrlist1.add("C"); // Print Elements in ArrayList 1 System.out.println("ArrayList 1 : "); for (String ele : arrlist1) { System.out.println("Element : " + ele); } // Finding size of this list int size = arrlist1.size(); System.out.println("Size of Array List : " + size); System.out.println("Operation : Clear"); arrlist1.clear(); size = arrlist1.size(); System.out.println("Size of Array List after Op : " + size); } } |
Output :
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ArrayList 1 : Element : A Element : B Element : C Size of Array List : 3 Operation : Clear Size of Array List after Op : 0 |