How to Return an Array in Java

by Online Tutorials Library July 22, 2022

How to return an array in Java

In this section, we are going to learn how to return an array in Java.

Remember:

A method can return a reference to an array.
The return type of a method must be declared as an array of the correct data type.

Example 1

In the following example, the method returns an array of integer type.

  import java.util.Arrays;  public class ReturnArrayExample1  {  public static void main(String args[])  {  int[] a=numbers();     //obtain the array  for (int i = 0; i < a.length; i++) //for loop to print the array  System.out.print( a[i]+ ” “);     }  public static int[] numbers()  {  int[] arr={5,6,7,8,9};//initializing array  return arr;  }  }  

Output:

Example 2

In the following example, the method returns an array of double type.

  public class ReturnArrayExample3  {  public static double[] returnArray( )  {  double[] arr = new double [3];    // Creating an array of 3 elements  arr[0]=6.9;  arr [1]=2.5;  arr [2]=11.5;  return( x );         // Return the reference of the array  }  public static void main(String[] args)  {  double[] a;//variable to store returned array  a = returnArray();//called method  for (int i = 0; i < a.length; i++) //for loop to print the array  System.out.println( a[i]+ ” “);     }  }  

Output:

Example 3

In the following example, method returns an array of object type.

  import java.util.Arrays;  class ReturnArrayExample3  {  public static int[] returnArray()  {  int a1=20;  int a2=23;  int a3=87;  return new int[] {a1,a2,a3}; //returns array  }  public static void main(String args[])  {  int[] arr=returnArray();//invoking method and storing returned array into arr  System.out.println(Arrays.toString(arr));//returns the string representation of the object  }  }  

Output:

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How to Return an Array in Java

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