Question

import java.util.Scanner;
public class Question3 {
public static void main(String[] args) {
    String input;
    int i1,i2,i3;
    Scanner keyboard = new Scanner(System.in);
    System.out.println("Input a 3 digit number ");
    input = keyboard.next();
    String[] numbers = input.split("\\s+");
    i1= Integer.parseInt(numbers[0]);
    i2= Integer.parseInt(numbers[1]);
    i3= Integer.parseInt(numbers[2]);
    System.out.println(i1);
    System.out.println(i2);
    System.out.println(i3);
    
    }   
}

Here is what it should do: somebody types
1 2 3
and the program should output

1

2

3
however, it throws an arrayindexoutofbounds execpetion at the line i2= ….

I need them to be INTs btw because i need to do stuff with them afterwards… How can i fix this? (The question for my class is…)

Write a program that uses a Scanner to read three integers (positive) displays the biggest number of three. (Please complete without using either of the operators && or ||. These operators will be covered in class shortly. Similarly loops are not required.)

Some sample run:

Please input 3 integers: 5 8 3

The max of three is: 8

Answer 1

import java.util.Scanner;
public class Test {
public static void main(String[] args) {
    int i1,i2,i3;
    Scanner keyboard = new Scanner(System.in);
    System.out.println("Input a 3 digit number ");

    i1= Integer.parseInt(keyboard.next());
    i2= Integer.parseInt(keyboard.next());
    i3= Integer.parseInt(keyboard.next());
    System.out.println(i1);
    System.out.println(i2);
    System.out.println(i3);

    }   
}