Java Program to Use Method Overloading for Printing Different Types of Array

In Java method overloading can be defined as the class containing multiple methods with the same name but the list of parameters or type of parameters or the order of the parameters of the methods should not be the same. We can print different types of arrays using method overloading in java by making sure that the method contains different parameters with the same name of the method.

Let’s implement a program with the printArray() method overloaded three times to print different types of array. And every time the function has different parameters. In the main method provide the required inputs to each array and then by calling their respective methods the array printed on the screen.

Implementation:

Java

// Java Program to Use Method Overloading
// for Printing Different Types of Array
class methodOverloadingDemo {

    // creating a method for printing integer
    // array with integer parameter
    public static void printArray(Integer[] arr)
    {
        System.out.println("The Integer array is: ");

        // for loop for printing the elements of array
        for (Integer i : arr)
            System.out.print(i + " ");
        System.out.println();
    }

    // overloading the above created method with different
    // parameter method contains a character parameter
    public static void printArray(Character[] arr)
    {
        System.out.println("\nThe Character array is: ");

        // for loop for printing the elements of array
        for (Character i : arr)
            System.out.print(i + " ");
        System.out.println();
    }

    // now the parameter for the overloaded method is String
    public static void printArray(String[] arr)
    {
        System.out.println("\nThe String array is: ");

        // for loop for printing the elements of array
        for (String i : arr)
            System.out.print(i + " ");
        System.out.println();
    }

    // now the parameter for the overloaded method is double
    public static void printArray(Double[] arr)
    {
        System.out.println("\nThe Double array is: ");

        // for loop for printing the elements of array
        for (Double i : arr)
            System.out.print(i + " ");
    }

    // main function
    public static void main(String args[])
    {

        // calling the parameters of all the
        // methods and taking the inputs
        Integer[] iarr = { 2, 4, 6, 6, 8 };
        Character[] carr = { 'H', 'E', 'L', 'L', 'O' };
        String[] sarr
            = { "Ram", "Nidhi", "John", "Raju", "Sara" };
        Double[] darr
            = { 10.0123, 89.123, 65.132, 78.321, 1.798 };

        // calling the methods and printing the arrays
        printArray(iarr);
        printArray(carr);
        printArray(sarr);
        printArray(darr);
    }
}

Output

The Integer array is: 
2 4 6 6 8 

The Character array is: 
H E L L O 

The String array is: 
Ram Nidhi John Raju Sara 

The Double array is: 
10.0123 89.123 65.132 78.321 1.798 

Time Complexity: O(N), where N is the size of the array.

Auxiliary space: O(1) because constant variables have been used