How to Get Length of a List in Java

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How to Get Length of a List in Java ?

Answer

To get the length of a list in Java, you can use the size() method of the List interface.

✐ Examples

1 Get Length of an Integer List

In this example,

We create a list named numbers with integer values.
We use the size() method of the list object numbers to get the number of elements in the list.
The size() method returns the number of elements in the list.
Finally, we print the size to the console using System.out.println().

Java Program

import java.util.Arrays;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5);
        int length = numbers.size();
        System.out.println("Length of the list is: " + length);
    }
}

Output

Length of the list is: 5

2 Get Length of a String List

In this example,

We create a list named fruits with string values.
We use the size() method of the list object fruits to get the number of elements in the list.
The size() method returns the number of elements in the list.
Finally, we print the size to the console using System.out.println().

Java Program

import java.util.Arrays;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        List<String> fruits = Arrays.asList("apple", "banana", "cherry");
        int length = fruits.size();
        System.out.println("Length of the list is: " + length);
    }
}

Output

Length of the list is: 3

Summary

In this tutorial, we learned How to Get Length of a List in Java language with well detailed examples.

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How to Get Length of a List in Java

How to Get Length of a List in Java ?

Answer

✐ Examples

1 Get Length of an Integer List

Java Program

Output

2 Get Length of a String List

Java Program

Output

Summary

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