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POPrinting arrays with different lengths
 

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    <p>I'm writing a program that prints an array containing the sum of the values of two arrays passed as parameters. I need to include exceptions for when one of the arrays may be longer than the other. In that case, the method should print the sum of the indexes that both arrays share, then print the values of the array that don't have a corresponding value to add to. </p> <p>The problem here is that every time I go to compile the program, I get a message that says: Sum.java:51: cannot find symbol symbol : variable sumY location: class Sum sumY[j] = x[j] + y[j]; ^ 1 error</p> <pre><code>import java.util.*; class Sum { public static void main (String [] args) { double [] a1 = {4.5, 2.8, 3.4, 0.8}; double [] a2 = {1.4, 8.9, -1.0, 2.3}; arraySum (a1, a2); System.out.println (Arrays.toString (arraySum (a1, a2))); } public static double [] arraySum (double [] x, double [] y) { int length = 0; if (x.length &lt; y.length) { double [] sumY = new double [y.length]; length = y.length; for (int i = 0; i &lt;= y.length - 1; i++) { for (int j=0; j &lt;= x.length-1; j++) { sumY [j] = x[j] + y[j]; } sumY [(x.length -1) + i] = y[i]; } return sumY; } if (x.length &gt; y.length) { double [] sumX = new double [x.length]; length = x.length; for (int i = 0; i &lt;= x.length - 1; i++) { for (int j=0; j &lt;= y.length-1; j++) { sumY[j] = x[j] + y[j]; } sumX [(y.length -1) + i] = y[i]; } return sumX; } else { double [] sum = new double [x.length]; length = x.length; for (int i = 0; i &lt;= length - 1; i++) { sum[i] = x[i] + y[i]; } return sum; } } } </code></pre>
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    1. USsrsarkar7
    1. USsrsarkar7
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    1. COYou seem to be asking two questions. Could you please make them separate questions? Otherwise, it's possible that one person will supply the best answer for one question, and somebody else will supply the best answer for the other; and you'll be unable to reward them both appropriately.
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      1. USDawood ibn Kareem
 

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