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POProgram doesn't compile correctly
 

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  1. POProgram doesn't compile correctly
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    <p>Program is supposed to take the numbers from the numberList and calculate the average and frequency. I have written my code below. I have the main class which I'm also posting as well. I know I can use the an array but I want to try a numberlist instead.</p> <pre><code>import java.io.*; import java.lang.Math; import java.util.*; import java.text.DecimalFormat; public class intNode { double average; double deviation; int sum = 0; int number = 0; int newnumber = 0; int index; double frq; //ArrayList&lt;Integer&gt; element = new ArrayList&lt;Integer&gt;(); int[] rangeFrequency = new int[10]; NumberList numList = new NumberList(51,52,55,57,58,61,62,63,66,66,66,70,72,73,74,75,75,77,77,78,79,81,82,84,86,87,88,91,94,97); DecimalFormat fmt = new DecimalFormat("0.000"); // Start methods public String intAdd (){ while (numList.hasNextInt()) { element.add(numList.nextInt()); } } public int sum (){ for (int item : element){ sum += item; System.out.println(item); } return sum; } public double avg (){ average = sum / element.size(); return average; } public double deviation(){ for (int i = 0; i &lt; element.size(); i++) { newnumber += Math.pow((element.get(i) - average),2); } deviation = Math.sqrt(newnumber / (element.size())); return deviation; } public String frequency(){ //int[] rangeFrequency = new int[10]; for (int elem: element) { int bucket = elem / 10; rangeFrequency[bucket] += 1; } } public String toString() { String result = ""; result += "The average of these grades is : " + fmt.format(average); result += "The standard deviation of these grades is: " + fmt.format(deviation); result += "Grade Range\tFrequency"; for (int i = 0; i &lt; rangeFrequency.length; ++i) { result += (i * 10 + "-" + (i * 10 + 9)); result += ("\t\t" + rangeFrequency[i]); } } } </code></pre> <p>MAIN CLASS BELOW.</p> <pre><code>import java.io.*; import java.lang.Math; import java.util.*; import java.text.DecimalFormat; public class gradeSorter{ public static void main(String[] args) throws IOException { { intNode good = new intNode(); } } } </code></pre> <p>These are the errors I get</p> <pre><code>----jGRASP exec: javac -g gradeSorter.java intNode.java:25: error: cannot find symbol while (numList.hasNextInt()) ^ symbol: method hasNextInt() location: variable numList of type NumberList intNode.java:27: error: cannot find symbol element.add(numList.nextInt()); ^ symbol: method nextInt() location: variable numList of type NumberList intNode.java:27: error: cannot find symbol element.add(numList.nextInt()); ^ symbol: variable element location: class intNode intNode.java:32: error: cannot find symbol for (int item : element){ ^ symbol: variable element location: class intNode intNode.java:40: error: cannot find symbol average = sum / element.size(); ^ symbol: variable element location: class intNode intNode.java:45: error: cannot find symbol for (int i = 0; i &lt; element.size(); i++) ^ symbol: variable element location: class intNode intNode.java:47: error: cannot find symbol newnumber += Math.pow((element.get(i) - average),2); ^ symbol: variable element location: class intNode intNode.java:49: error: cannot find symbol deviation = Math.sqrt(newnumber / (element.size())); ^ symbol: variable element location: class intNode intNode.java:57: error: cannot find symbol for (int elem: element) { ^ symbol: variable element location: class intNode 9 errors ----jGRASP wedge2: exit code for process is 1. ----jGRASP: operation complete. </code></pre>
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    1. USJohn P.
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    2. VO
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    1. COI'm sorry but your coding is just messy.
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      1. POProgram doesn't compile correctly
      1. USGGrec
    2. COYour question is wrong. Your program does not run at all. It cannot be compiled.
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      1. USAlexR
    3. COWhat's the question?
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      1. POProgram doesn't compile correctly
      1. USidfah
 

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