beginner-urgent java help needed
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Thread: beginner-urgent java help needed

  1. #1
    Join Date
    Oct 2011
    Posts
    1

    beginner-urgent java help needed

    Hello, I need some help with a question. I not a very good programmer myself so plese go easy on me. I'm a year 1 student in diploma in Information Technology.

    The question goes like this

    Write an application that will read in people names and their ages. Store them in two arrays. Then do a search of names to find the corresponding age. Follow these steps to write the programme:
    a) Create a class BasicsApp4.java with a main() method
    b) Add a readAge() method
    c) Add a readAges() method
    d) Add a readName() method
    e) Add a readNames() method that will call readName method to store 5 names into an array called nameArray
    f) In the main method, do the followings:
    -Declare ageArray and nameArray with size of 5
    -Call/Invoke readNames() and readAges() methods to read in 5 names and ages
    -Ask the user to enter a name and search for the age
    -Display name and age if found, else display name not found
    -Ask user to enter an age and display all the names with the same age

    Here is what i done so far, I'm not very sure if where i had gone wrong and i did not know how to continue.

    public class BasicApp4 {

    public static void main(String[] args) {
    // TODO Auto-generated method stub
    int[]ageArray = new int[5];
    String[]nameArray = new String[5];

    readName(nameArray);


    }


    private static void readName(String[] nameArray) {
    // TODO Auto-generated method stub
    Scanner sc = new Scanner(System.in);
    System.out.print("Enter name: ");
    name = sc.nextLine();



    }

    private static int readAge(int[] ageArray) {
    // TODO Auto-generated method stub
    Scanner sc = new Scanner(System.in);
    int age;

    do {
    System.out.print("Enter age: ");
    age = sc.nextInt();
    }
    while ((age<0)||(age>100));
    return age;

    }
    private static void readAges(int[] ageArray) {
    // TODO Auto-generated method stub
    for (int i=0; i<ageArray.length; i++){

    }
    ageArray[0]=readAge(null);
    }

    }

  2. #2
    Join Date
    May 2006
    Location
    UK
    Posts
    4,474

    Re: beginner-urgent java help needed

    I not a very good programmer myself
    Part of your problem is not the programming it's reading and implementing the basic instructions.

    e) Add a readNames() method that will call readName method to store 5 names into an array called nameArray
    Where is this method?

    -Call/Invoke readNames() and readAges() methods to read in 5 names and ages
    Where are these calls and why is there a call to readName()?


    Why is your readAges method calling readAge and passing null. If you don't need to pass the array in (and you don't) your readAge method shouldn't have any parameters. Why, also, does the method have a for loop which does nothing and then after the loop you call readAge(), surely this call should be inside the loop so you get 5 ages.

    Once you have readAge() and readAges() working apply the same logic to readName() and readNames().
    Posting code? Use code tags like this: [code]...Your code here...[/code]
    Click here for examples of Java Code

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