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Thread: New to Java, need help with arrays inside a loop please!

  1. #1
    Junior Member
    Join Date
    Nov 2012
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    Question New to Java, need help with arrays inside a loop please!

    I'm coding a program that will take the prices entered by a user at a store and display them back within the program, so far I've completed the entire program except the part that takes the users input within a loops and prints it out as a array.

    What I need help with;

    The program has parameters whether ie. Adding anything over 3000 doesn't work, add a 0 removes the last price, and a -1 ends the program.

    After ending the program (using -1) I need to take the prices the user input and output it within an array, example:

    Enter a price for item #5: $-1
    -1 entered, calculating total owing…
    OK Gary, your purchases are:
    SUB-TOTAL: $128.25

    I don't know how to code an array so I take reprint the prices entered by the user within the loop, if anyone could help me I'd be greatly appreciated.

    Note: This is the array I created at the beginning of my program..

    ArrayList <Double> costList = new ArrayList<Double>(15);
    double [] priceArray = new double [15];

  2. #2
    Grand Poobah
    Join Date
    Mar 2011
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    Thanked 167 Times in 158 Posts

    Default Re: New to Java, need help with arrays inside a loop please!

    You mention array and yet in the code snippet you have an array and an ArrayList. Why?
    You need a loop that reads in the user input and stores it in the array. After user enters -1 to end input you need another loop that iterates over the array and prints out each value. You can sum them up in the same loop.
    Improving the world one idiot at a time!

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