But I get the error when run: Exception in thread "main" java.util.InputMismatchException at java.util.Scanner.throwFor(Scanner.java:864) at java.util.Scanner.next(Scanner.java:1485) at java.util.Scanner.nextInt(Scanner.java:2117) at java.util.Scanner.nextInt(Scanner.java:2076) at threeincreasingnumbers.Threeincreasingnumbers.main(Threeincreasingnumbers.java:21) I assume there is a problem comparing int, double and long numbers. How can I solve this problem?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Description: The program prompts the user to enter three numbers and invokes the  method: public static void displayIncreasingNumbers(int num1, double num2, long num3) to display them in increasing order.

Below is my code:

package threeincreasingnumbers;

import java.util.Scanner;

public class Threeincreasingnumbers {

public static void main(String[] args) {
// Create Scanner
Scanner scan = new Scanner(System.in);

// Prompt the user to enter three numbers
System.out.print("Enter three numbers: ");


int num1 = scan.nextInt();

double num2 = scan.nextDouble();

long num3 = scan.nextLong();

// Display numbers in increasing order
displayIncreasingNumbers(num1, num2, num3);

}
public static void displayIncreasingNumbers(int num1, double num2, long num3) {
double temp;


if (num2 < num1 && num2 < num3){
temp = num1;
num1 = (int) (double) num2;
num2 = temp;
}
else if (num3 < num1 && num3 < num2) {
temp = num1;
num1 = (int) num3;
num3 = (long) temp;
}
if (num3 < num2) {
temp = num2;
num2 = num3;
num3 = (long) temp;
}

// Display result
System.out.println(num1 + " " + num2 + " " + num3);
}
}

But I get the error when run: Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Scanner.java:864)
at java.util.Scanner.next(Scanner.java:1485)
at java.util.Scanner.nextInt(Scanner.java:2117)
at java.util.Scanner.nextInt(Scanner.java:2076)
at threeincreasingnumbers.Threeincreasingnumbers.main(Threeincreasingnumbers.java:21)

I assume there is a problem comparing int, double and long numbers. How can I solve this problem?

 

 

 

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