CODEWITHSUNDEEP
java
justLearning
justLearning

Reputation: 187

System.print.out if one integer is a multiple of the other

I am writing a program where 2 integers are inputted by user,then the program determines whether the first is a multiple of the second and prints the result.

Here is my code:

package assignmentsmodule1_exercise2.pkg16;

import java.util.Scanner;

public class AssignmentsModule1_Exercise216 {

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

        int number1;
        int number2;

        System.out.print("Enter first number: ");
        number1 = input.nextInt();

        System.out.print("Enter second number: ");
        number2 = input.nextInt();

        if (number1 % number2 == number1);
        System.out.printf("%d % %d%n", number1, number2);
    }

}

Every time I run the program an error message comes up.

Here is the error code:

Exception in thread "main" java.util.IllegalFormatFlagsException: Flags = ' '
    at java.util.Formatter$FormatSpecifier.checkText(Formatter.java:3037)
    at java.util.Formatter$FormatSpecifier.<init>(Formatter.java:2733)
    at java.util.Formatter.parse(Formatter.java:2560)
    at java.util.Formatter.format(Formatter.java:2501)
    at java.io.PrintStream.format(PrintStream.java:970)
    at java.io.PrintStream.printf(PrintStream.java:871)
    at      assignmentsmodule1_exercise2.pkg16.AssignmentsModule1_Exercise216.main(AssignmentsModule1_Exercise216.java:34)
Java Result: 1

Is there anyone who can help me with my problem?

Upvotes: 0

Views: 256

Answers (4)

mico
mico

Reputation: 12748

You haven't escaped your % character on your printf function. The % alone is not permitted, Java tries to combine it to the next space character. Use another % to escape ie. write %% instead.

Source: Java: Literal percent sign in printf statement

Upvotes: 0

Joao Jesus
Joao Jesus

Reputation: 187

Your printf needs to escape the '%' character:

System.out.printf("%d %% %d%n", number1, number2);

Just add an extra '%' to escape it.

Upvotes: 0

Zielu
Zielu

Reputation: 8562

your printf statment has has unescapped % sign. Your multipliciyt test is also wrong.

Upvotes: 0

Eric J.
Eric J.

Reputation: 150138

M is divisible by N when M % N == 0

Your line

if (number1 % number2 == number1);

should be

if (number1 % number2 == 0)

(Notice I removed the ; mentioned by @Sotirios in his comment.

Also you need to escape the literal % in the following line

System.out.printf("%d % %d%n", number1, number2);

Should be

System.out.printf("%d %% %d%n", number1, number2);

Also, you have three placeholders but only two parameters.

Upvotes: 4

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