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javaeclipseacm-java-libraries

How to write my Java program with the ACM library (ConsoleProgram)?


I want ask a little question about my program.

This is my code sample:

public static void main(String[] args) {
    int q;
    int p;
    int thelargest;
    int thesmallest;

    Scanner input = new Scanner(System.in);
    System.out.println("Enter the list of number : ");
    String input2 = input.nextLine();

    String[] numbers = input2.split(" ");

    int[] result = new int[numbers.length];
    for (p = 0; p < numbers.length; p++) {
        result[p] = Integer.parseInt(numbers[p]);

    }

    for (q = 0; q < result.length; q++) {
        System.out.print("");
        System.out.println(result[q]);
    }

    System.out.println("Largest Number :  " + LargestNumber(result));
    System.out.println(" Smallest Number :  " + SmallestNumber(result));
    thelargest = LargestNumber(result);
    thesmallest = SmallestNumber(result);
    System.out.println("The Arithmetic Mean : "
            + AirthmeticMean(result, thesmallest, thelargest));

}

public static int SmallestNumber(int[] series) {
    int thesmallest = series[0];
    for (int i = 1; i < series.length; i++) {
        if (series[i] < thesmallest) {

            thesmallest = series[i];
        }
    }
    return thesmallest;
}

public static int LargestNumber(int[] series) {
    int thelargest = series[0];
    for (int i = 1; i < series.length; i++) {
        if (series[i] > thelargest) {

            thelargest = series[i];
        }
    }
    return thelargest;
}

public static float AirthmeticMean(int[] result, int thesmallest,
        int thelargest) {
    int sum = 0;
    for (int i = 0; i < result.length; i++) {
        sum += result[i];
    }

    sum -= thesmallest;
    sum -= thelargest;

    return (float) sum / result.length;
}

How can I convert this code sample to the ConsoleProgram (which is in the ACM library)? Which parts must I change or add?

I started with:

public class ArithmeticMean extends ConsoleProgram {

}

But I do not know what to do next.


Solution

  • In acm library no main method though you need to use instead the following construction:

    public void run() {}
    

    Here is an API of this library http://jtf.acm.org/javadoc/student/ Select acm.program package ConsoleProgram class and find appropriate methods see also acm.io / class IOConsole

    e.g. System.out.println() --> println() Scanner (String input) --> readLine(String prompt) etc.

    the rest is the same as you in your code.

    Ok, here you are your code in acm: (a bit ugly but works fine:)

    import acm.program.ConsoleProgram;
    
    public class StackOverflow extends ConsoleProgram
    {
        private static final long serialVersionUID = 1L;
    
        public void run()
        {
            int q;
            int p;
            int thelargest;
            int thesmallest;
            String input2 = "";
            String[] numbers = null;
    
            println("Enter the list of number : ");
            while (true) {
                String input = readLine();
                if (input.equals(""))
                    break;
                input2 += input + " ";
            }
            numbers = input2.split(" ");
    
            int[] result = new int[numbers.length];
            for (p = 0; p < numbers.length; p++) {
                result[p] = Integer.parseInt(numbers[p]);
    
            }
    
            for (q = 0; q < result.length; q++) {
                print("");
                println(result[q]);
            }
    
            println("Largest Number :  " + LargestNumber(result));
            println(" Smallest Number :  " + SmallestNumber(result));
            thelargest = LargestNumber(result);
            thesmallest = SmallestNumber(result);
            println("The Arithmetic Mean : "
                    + AirthmeticMean(result, thesmallest, thelargest));
    
        }
    
        public static int SmallestNumber(int[] series)
        {
            int thesmallest = series[0];
            for (int i = 1; i < series.length; i++) {
                if (series[i] < thesmallest) {
    
                    thesmallest = series[i];
                }
            }
            return thesmallest;
        }
    
        public static int LargestNumber(int[] series)
        {
            int thelargest = series[0];
            for (int i = 1; i < series.length; i++) {
                if (series[i] > thelargest) {
    
                    thelargest = series[i];
                }
            }
            return thelargest;
        }
    
        public static float AirthmeticMean(int[] result, int thesmallest,
                int thelargest)
        {
            int sum = 0;
            for (int i = 0; i < result.length; i++) {
                sum += result[i];
            }
    
            sum -= thesmallest;
            sum -= thelargest;
    
            return (float) sum / result.length;
        }
    
    }
    

    And Run as JavaApplet