Java Collections - ArrayList.clear() Examples

[Last Updated: Dec 10, 2025]

Class:

java.util.ArrayList

Methods:

public void clear()

Removes all of the elements from this list. The list will be empty after this call returns.

Examples

package com.logicbig.example.arraylist;

import java.util.*;

public class ClearExample {

    public static void main(String... args) {
        // Remove all elements
        ArrayList<String> list = new ArrayList<>(Arrays.asList("A", "B", "C"));
        System.out.println("Before clear - Size: " + list.size());
        list.clear();
        System.out.println("After clear - Size: " + list.size());
        System.out.println("Is empty? " + list.isEmpty());
    }
}

Output

Before clear - Size: 3
After clear - Size: 0
Is empty? true

JDK 25

Java Collections - ArrayList.clear() Examples

Class:

Methods:

Examples

Output

See Also