Thread: Passing an element from an array to a Method

Hello;

My code is supposed to validate each element of the array to ensure they are within the valid range (50-100).
I can't seem to pass them to the Method.

import java.util.Scanner;

public class Method2 {

public static void main(String[] args){
Scanner input = new Scanner(System.in);
final int NUMBER_OF_INTEGERS = 5;
int[] numbers = new int[NUMBER_OF_INTEGERS]; //Create an array

for(int i = 0; i <NUMBER_OF_INTEGERS; i++){
System.out.println("Enter an integer (50-100): ");
numbers[i] = input.nextInt();
int isValid(i);
}

public static int isValid(int n){
int result;

if(n <= 50 && n >= 100)
System.out.println("**Invalid number ");
else
result = n;

return result;
}
}


}

Please read the sticky post at the top of this subforum for the correct way to post your code. Announcements - What's Wrong With My Code?

public static int isValid(int n)

This returns an integer. Which you do here;

return result;

Great! Where are you storing that returned result??? There's problem #1

Also, I think you may need to consider your steps again.
Step 1 - Read Number
Step 2 - Test Number
Step 3 - Valid Number = Store It / Invalid Number alert user
Step 4 - Repeat until array is filled with valid numbers.

Also, are 50 and 100 valid entries or not?
Why did you use && in the if statement. Can a number be both <= 50 AND >= 100 at the same time?
You are passing the value of i into the method and testing that, is that the number you want to test if it is valid. What is the value of i for each iteration of the loop

With a name like isValid, I feel it would be more natural to return a boolean result. But both ways can work.