Question

a) Explain how can an array store variables of different types. (b) Include a code example.

Please don't copy and paste another answer.

Answer 1

• Normal array store variables of same type variables.
• Using Objects we can create the arrays.
• This object arrays can hold different type variables.
• Simply object arrays are hetrogeneous collection of data variables.

Syntax:

Object[] arrayName = new Object[20];

Example:

import java.util.Scanner;

class Main {

public static void main(String[] args) {

Object[] array = new Object[20];

String str1 = new String("Hii Your score is "); // String data type

array[0] = str1; // Asign string to the array

double marks=92.86;

array[1] = marks; // Asign double type to the array

String str2 = new String(" Out of "); // String data type

array[2] = str2; // Asign string to the array

int maxMarks=100;

array[3] = maxMarks; // Asign int type to the array

for(int i=0;i<4;i++) // Loop rund for 4 times

{

System.out.print(array[i]); // print array which contain variables of different types

}

System.out.println();

}

}

Output: