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javaargument-passing
Sam
Sam

Reputation: 77

Passing numbers, variables, and procedures as arguments in Java

I just started studying how to code in the Java programming language.

I was given a problem that told me to pass numbers, variables, and expressions as arguments to a procedure call. The problem I am having is that I get an error when I tried to pass numbers, variables and expressions as arguments to the procedure call (I got 27 errors).

Below is my code, and I would really appreciate it if anyone could point out what is wrong with my code. Thank you.

public class test {

// this is the procedure definition
public static int computeCost ( int quantity , int price ) {
    return quantity * price;
}

public static void main ( String args[] ) 
    // passing numbers as arguments to the procedure call "cost"
    System.out.println ( computeCost ( 7 , 12 ) );

    // passing variables as arguments to the procedure call "cost"
    int a = 5;
    int b = 7;
    System.out.println ( computeCost ( a , b ) );

    // passing expressions as arguments to the procedure call "cost
    System.out.println ( computeCost ( 1 + 2 + 3 + 4, 5 + 6 + 7 + 8 ) );
}
}

Upvotes: 0

Views: 243

Answers (4)

Earl Sincero
Earl Sincero

Reputation: 11

Just a tip. Sometimes too many errors just corresponds to a missing piece of code. Look for every possible cases.

Upvotes: 0

JBuenoJr
JBuenoJr

Reputation: 975

You are missing an opening bracket on your main method.

public class Test
{
    // this is the procedure definition
    public static int computeCost(int quantity, int price)
    {
        return quantity * price;
    }

    public static void main(String args[])
    {// <--MISSING
        // passing numbers as arguments to the procedure call "cost"
        System.out.println(computeCost(7, 12));

        // passing variables as arguments to the procedure call "cost"
        int a = 5;
        int b = 7;
        System.out.println(computeCost(a, b));

        // passing expressions as arguments to the procedure call "cost
        System.out.println(computeCost(1 + 2 + 3 + 4, 5 + 6 + 7 + 8));
    }
}

Upvotes: 3

Floris
Floris

Reputation: 46415

You are missing the opening { in your definition of main!

public static void main ( String args[] )

should be 

public static void main ( String args[] ) {

Upvotes: 2

Kon
Kon

Reputation: 10810

I see what's wrong. You don't have an opening bracket after your main(..) method. All methods in Java must have their code surrounded with { and }.

Change this:

public static void main ( String args[] )

to this:

public static void main ( String args[] ) {

Other than that your code looks perfectly fine to me.

Upvotes: 5

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