How to Get Array Length in Java - Step by Step Examples

How to Get Array Length in Java ?

Answer

To get the length of an array in Java, you can use the length property of the array.


✐ Examples

1 Length of Integer Array

In this example,

  1. We create an integer array named numbers with some values.
  2. We then get the length of the array using length property of the array object numbers, and store the returned value in length variable.
  3. Array.length property returns the length of this array.
  4. Finally, we shall print the value in length to standard output.

Java Program

public class Main {
    public static void main(String[] args) {
        int[] numbers = {1, 2, 3, 4, 5};
        int length = numbers.length;
        System.out.println("Length of array is: " + length);
    }
}

Output

Length of array is: 5

2 Length of String Array

In this example,

  1. We create a string array named colors with some values.
  2. We then get the length of the array using length property of the array object colors, and store the returned value in length variable.
  3. Array.length property returns the length of this array.
  4. Finally, we shall print the value in length to standard output.

Java Program

public class Main {
    public static void main(String[] args) {
        String[] colors = {"red", "green", "blue"};
        int length = colors.length;
        System.out.println("Length of array is: " + length);
    }
}

Output

Length of array is: 3

Summary

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


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