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Thread: another school homework thread

  1. #1
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    Default another school homework thread

    I just started learn this stuff and im not doing to well so far. So any help is welcome.

    Design and implement an application that reads an arbitrary number of integers that are in the range 0 to 50 inclusive and counts how many occurrences of each are entered. Stop reading input when any integer outside the range 0 to 50 is encountered. After all input has been processed, print all of the values (with the number of occurrences) that were entered one or more times.
    Prompt for input with System.out .print("enter numbers: ").
    The output should be one frequency count per line. For example:
    enter numbers: 2 2 5 5 5 5 5 5 2 5 -1
    3 occurrences of 2
    7 occurrences of 5
    SPECIFICATION OF NAMES: Please name your application class Frequency

    What i have so far is

    //Samuel Tate
    //Itec 120
    //Frequnency
    // Will not complile

    import java.util.Scanner;
     
      public class Frequency {
     
        public static void main (String[] args) { 
     
     
        int input = 0;
        int[] integers = new int[51];
        Scanner scan = new Scanner(System.in);
     
     
       while(input != 51); {
     
        System.out.print("Enter an arbitrary number of integers in the range 0-50 (enter 51 to exit) : ");
        input = scan.nextInt();
            if(input == 51) break;
            if(input < 0 || input > 50){
                System.out.println("number out of range");
                }
         integers[input]++; 
            continue;
     
             }   
     
             for(int index = 0; index < 51; index++);
                if(integers[index] > 0)
                    System.out.println(index + ": " + integers[index]);
     
     
         }   
     
     
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: another school homework thread

    Do you have any specific questions about your code?

    Please edit your post and wrap your code with code tags:
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Default Re: another school homework thread

    You are using a rough format to break down and understand, might I suggest using brackets "{" & "}" to body your for loops, if-then statements, and while loops.

    As of right now your while loop does nothing because you end the loop with a semi-colon directly after you initialize it.

    Yours:
    while(condition); {
    // body
    }

    Correct:
    while(condition) {
    // body
    }

    Continue is not a keyword to be used inside an if-then statement, neither is break. Remove those

  4. #4
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    Default Re: another school homework thread

    Why do you have a ; after the while clause? That will just do nothing (; is a valid statement in java though it does nothing in this case.)
    JavaScript is NOT Java.

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    Default Re: another school homework thread

    Really need some help on school

    Duplicate post
    Improving the world one idiot at a time!

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