Java ArrayList clear() method with Examples

by Online Tutorials Library July 22, 2022

Java ArrayList clear() method

The clear () method of Java ArrayList class provides an easy way to discard all elements of the ArrayList (removes all elements of the ArrayList).

Syntax:

Parameter:

No parameters.

Return:

Nothing.

Example 1

import java.util.ArrayList;  public class ArrayListClearExample1  {  ArrayList<String> letters = new ArrayList<>();  letters.add(“A”);  letters.add(“B”);  letters.add(“C”);  System.out.println(letters);// [A, B, C]  letters .clear()// clear all letters elements  System.out.println(letters);// []  }  

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Output:

[A, B, C]    []

Example 2:

  import java.util.ArrayList;  public class ArrayListClearExample2  {  ArrayList<String> birds = new ArrayList<>();  birds.add(“Parrot”);  birds.add(“Owl”);  birds.add(“Swallow”);  System.out.println(birds);// [“Parrot”, “Owl”, “Swallow”]  System.out.println(birds.size());// prints: 3  birds.clear();  System.out.println(birds.size());// prints: 0  System.out.println(birds);// []  }  

Test it Now

Output:

[Parrot, Owl, Swallow]  3  0  []

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Java ArrayList clear() method with Examples

Java ArrayList clear() method

Syntax:

Parameter:

Return:

Example 1

Example 2:

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