Question

Input and output of the contents of an array are such frequently used operations that they ought to be packaged as methods. Define two methods that do just that. They should be general; that is, they should work for any array of integers. The heading of the array output method should have the form void ( [ ] int lenth) where the parameter length represents the number of data elements in the array. The heading of the array input method should have the form void ( [ ] int lenth)where the parameter length represents the size of the array before the data are input, and the number of data values actually entered after input. Test your methods until they behave as expected. ( Needs to be coded in JAVA)

Answer 1

//ArrayOperatoons.java

import java.util.Scanner;
public class ArrayInOutOperations
{
public void input(int[]arr,int length)
{
Scanner in=new Scanner(System.in);
System.out.println("Enter Array elements: ");
for(int i = 0; i < length; i++)
{
arr[i]=in.nextInt();
}
}
public void output(int[]arr,int length)
{
System.out.println("Elements of array are: ");
for(int i = 0; i < length;i++)
{
System.out.printf("%d ",arr[i]);
}
System.out.println("\n");
}
}

----------------------------------------------------

//Main.java

public class Main

{

public static void main(String[] args) {

ArrayInOutOperations inOut= new ArrayInOutOperations();

int arr[] = new int[5];

  

inOut.input(arr,5);

inOut.output(arr,5);

//System.out.println("Hello World");

}

}

---------------------------------------------

//input

Enter Array elements:

1 2 3 4 5

//output

Elements of array are:

1 2 3 4 5