return position in array

[forms]

Hi,
my code below fills an array with random numbers and asks the user to guess if a number is located in a particular column. If the number is in that column it will print true, if not it will print false.

If the method check is true how do i return the position where the number was located in the array and print it?

Thanks for your help.

import java.util.Scanner;
public class ColContains {
	public static void main(String [] args){
		Scanner in = new Scanner(System.in);
		
		System.out.println("What row size array would you like?");
		int rowSize = in.nextInt();
		
		System.out.println("What column size array would you like?");
		int colSize = in.nextInt();
		
		int [][]a = fillarray(rowSize, colSize);
		
		System.out.println("Select a number between 0 and 4?");
		int number = in.nextInt();
		
		System.out.println("Guess a column this number is contained in from 0 to " + (colSize-1) + "?");
		int col = in.nextInt();
		
		boolean answer = check(a, number, col);
		System.out.println(answer);
		print(a);
		
	}
	
	public static boolean check(int [][]a, int value, int col ){
		for(int k=0; k<a.length; k++){
			if(a[k][col]==value){
				return true;
			}
		}
		return false;
	}
	
	public static void print(int [][] a){
		for(int i=0; i<a.length; i++){
			for(int j=0; j<a[i].length; j++){
				
				System.out.print(a[i][j]);
				System.out.print(" ");

			}
		System.out.println("");
		}
		
	}
	
	public static int[][] fillarray(int rowSize, int colSize){
		int[][] a = new int [rowSize][colSize];
		
		for(int i=0; i<a.length; i++){
			for(int j=0; j<a[i].length; j++){
				
				a[i][j] = (int) (Math.random()*5);

			}
		}
		return a;
	}
}

[Norm]

If the method check is true how do i return the position where the number was located

You might change what check() returns to be the index vs a boolean. Look at the String class's indexOf method for an example.

[forms]

Should i change the return type to an int or int [][]?

[Norm]

If check() is to return the index to the found value, that would be an int.