Question

Java Programming. I'm writing this in an IDE called Eclipse.

If you could also use comments to help me understand the code / your way of thinking, I'd highly appreciate your efforts.

This needs to use a for each loop, it will generates and return= an array of random 2-digit integers and it also needs to be printed out all on one line, separated by spaces.

Program71:

Write a program with a custom method that generates and returns an array of random 2-digit integers. The main method should prompt the user to specify the size of the array and call the custom method with this input as an argument. Use a foreach loop in main to display the integers all on one line separated by spaces.

Sample Output (user input in blue)
How many random 2-digit integers are desired?
12
Here are your integers:
43 76 22 38 64 30 87 14 55 63 35 42

Answer 1

I have written the program using JAVA PROGRAMMING LANGUAGE.

OUTPUT :

CODE :

// imported the required modules random and scanner

import java.util.Random;

import java.util.Scanner;

//Main class

class Main {

//method definition for generateRandom

static int[] generateRandom(int input)

{

int[] output = new int[input]; //return variable

int rand_int1;//declared the integer variable

Random rand = new Random(); //random object

// logic to generate the random numbers between 10 and 99 inclusive

for(int i=0;i<input;i++){

rand_int1 = rand.nextInt(90);

output[i] = rand_int1+10;

}

// returning array of elements

return output;

}

//main method

public static void main(String[] args) {

int input;//input integer variable

int[] output;

//scanner object

Scanner scan = new Scanner(System.in);

System.out.println("How many random 2-digit integers are desired? : ");

//Taking user input for number of random integers

input = scan.nextInt();

scan.close();//scanner closed

//calling the generateRandom to get the random numbers

output = generateRandom(input);

//for each loop to iterate over the array

for (int num : output)

{

//to print the output on the console

System.out.print(num + " ");

}

}

}

Thanks..