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  1. #1
    sebbybey is offline Member
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    Default Arrays and Histogram Help Needed

    Can someone help me solve this 2 tasks. thanks in advance!

    Histogram

    Using the following skeleton of code create a Java class and eventually a teest driver which displays a histogram using asterisks (*) – see the sample run below for an illustration of how it should look.


    public class Histogram {
    //Declare here an integer array. The size of the array will be determind within the getData method
    //Declare an interger to repersent the size of the array



    public void getData(){
    /*this method should ask the user how many elements the array should have, i.e. the size of
    * the array
    * Then the user must be asked to enter the values of the array
    * Finally it should call the displayData method passing as an argument the array that it was
    * just filled
    */

    }

    @SuppressWarnings(//need to fil) {
    private void displayData(){
    /*This method recieves the array and then displays on individual lines the message value at
    * position followed by the position (index) of array, then the actual value that it was
    * entered by the user for the position and thn as many asterisks as the value at that position
    * so if the value at a postion is 5 then expect to see five * asterisks
    */
    }



    }

    Here is the sample run

    Please enter size of array:
    5
    Please enter value at position 0
    1
    Please enter value at position 1
    4
    Please enter value at position 2
    6
    Please enter value at position 3
    4
    Please enter value at position 4
    2
    value at position 1*
    value at position 4****
    value at position 6******
    value at position 4****
    value at position 2**


    --------------------------

    Question 2

    You are given the following code. The code would not compile since there are syntactical errors and logical error(s) Fix the code.

    public class Addtime {

    public static void main(string[ ] args) {
    int min1, min2;
    int sec1, sec2;
    int secSum, minSum, hrSum;
    for (int i=0, i<6, i++) {
    System.out.println(“Enter the minutes for time 1: ”);
    Min1=EasyIn.getIn();
    System.out.println(“Enter the minutes for time 1: ”);
    sec1=EasyIn.getIn();
    System.out.println(“Enter the minutes for time 2: ”);
    min2=EasyIn.getIn();
    System.out.println(“Enter the minutes for time 2: ”);
    Sec2=EasyIn.getIn();
    secSum = sec1 + sec2 % 60;
    minSum = ((min1 + min2) + ((sec1 +sec2) / 60) % 60);
    hrSum= ((min1 + min2) + ((sec1 + sec2) / 60)) / 60;
    System.out.println(“The sum of the time is: ” + hrSum “:” + minSum + “:” + secSum;

    }
    }

    When you have fixed the error you can run it. A sample run is shown below.

    Enter the minutes for time 1:
    12
    Enter the minutes for time 1:
    12
    Enter the minutes for time 1:
    12
    Enter the minutes for time 1:
    12
    The sum of the times is: 0:24:24
    Enter the minutes for time 1:
    59
    Enter the minutes for time 1:
    1
    Enter the minutes for time 1:
    2
    Enter the minutes for time 1:
    0
    The sum of the times is: 1:1:3
    Enter the minutes for time 1:

    Send me an Email to sebbybey@msn.com

  2. #2
    Norm's Avatar
    Norm is offline Moderator
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    Default

    What are your problems so far?

  3. #3
    sebbybey is offline Member
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    Default

    i needed, to create a array histogram, that can make the first code work, i got the question on Google. I'm trying to train my self Java!

    Any help will be highly appreciated!

  4. #4
    Fubarable's Avatar
    Fubarable is offline Moderator
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