java create new empty list

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java create new empty list

To create a new empty list in Java, you can use the new operator to create an instance of a concrete implementation of the List interface, such as ArrayList or LinkedList.

Here is an example of how to create a new empty ArrayList:

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

public class Main {
    public static void main(String[] args) {
        List<String> list = new ArrayList<>();
        System.out.println(list);  // prints []
    }
}

This creates a new empty ArrayList of strings. You can add elements to the list using the add method.

You can also use the Collections.emptyList method from the java.util package to create an empty list. For example:

import java.util.List;
import java.util.Collections;

public class Main {
    public static void main(String[] args) {
        List<String> list = Collections.emptyList();
        System.out.println(list);  // prints []
    }
}

This creates an empty list that cannot be modified.

Created Time:2017-11-03 00:22:23  Author:lautturi