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No I dont know how to catch the error. I just want to create a while loop that prints a message saying Error invalid entry until they input a valid integer.

Example:

How many disks should we...

Yes I deleted that line and if I input 0 it does nothing and if I input a character it throws an exception on my int userinput = keyboard.nextInt(); for an input mismatch. Obviously because I enter a...

Again, I just wrote that as a placeholder. "int" in the line if (user input == int) is a syntax error and will not compile. That is just what I want it to do but dont know how to code for it. In...

It just gives me an invalid expression error for the if (userinput == int) line. I just wrote that as a placeholder until I know to do for "int."

I do have another error checking question in the following code between the error checking start and end segment:


import java.util.Scanner;

public class Recursion {

public static void...

Solved:


public void display() {
for (int i = 0; i < rows(); i++){
for (int j = 0; j < columns(); j++){
System.out.print(matrix[i][j] + " ");
}...

This sounds like what I want to do. How do I determine when the last element is printed?

My code is properly formatted it just didnt preserve it when I copy/pasted to this forum from Eclipse. All the brackets and statements are where they should be.
Thanks!

I need it to have the format:

1 2 3
4 5 6

with tab spacing.

And allow for any size matrix the user might input. This is just a simple 2 x 3 example.

I need to be able to display to the console the rows and columns of the matrix.
Heres the matrix I want to display in the same format:


import java.util.Scanner;

public class MatrixMain {
...

Im getting an exception in my display method.
I need to be able to display to the console the rows and columns of the matrix.
Heres the matrix I want to display:

import java.util.Scanner;
...