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Thread: Adding Arrays

  1. #1
    oudaivd1 is offline Member
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    Default Adding Arrays

    I am practicing on my arrays and im feeling pretty confident. But im struggling with this one error i keep getting. So if someone could tell me what im missing i would greatly appreciate it.

    package project12;

    /**
    *
    * @author David
    */
    public class Main {

    /**
    * @param args the command line arguments
    */
    public static void main(String[] args) {
    // TODO code application logic here
    //create a table 3x3

    double [][] firstTable = new double [3][3];
    double [][] secondTable = new double [3][3];
    double [][] sumTable;
    sumTable = addTables(firstTable, secondTable);


    double [][] sum = new double [firstTable.length][firstTable[0].length];

    }
    public static double addTables(double [][] firstTable,double [] [] secondTable, double [][] sumTable ){
    for (int r =0; r < firstTable.length; r++) {
    for (int c=0; c <firstTable[r].length; c++){
    sumTable [r] [c]= firstTable [r][c] + secondTable [r][c];
    }
    }
    return sumTable;

  2. #2
    Louis is offline Member
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    Default

    addTables(firstTable, secondTable);
    here you pass 2 actual parameter(arguments) to addTable?

    public static double addTables(double [][] firstTable,double [] [] secondTable, double [][] sumTable ){
    Here you want 3 paramter in the paramter list.
    Is that error you want to find?

  3. #3
    m00nchile is offline Senior Member
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    Default

    Also, you initialize your sumArray after the method call. Even if the addTables method worked (you're not calling it correctly btw), the results would be lost as you instantiate a new array.
    Ever seen a dog chase its tail? Now that's an infinite loop.

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