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POJava quick sort, reading from a user input file into any array (to be sorted)
 

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    <p>What's up y'all,</p> <p>I am trying to write some code in Java that will read in the numbers from a file (one # on each line of .txt file) put them into an array, and then run quick sort on the array. Eclipse is showing some red that I am having trouble with. My errors are marked with comments, and what the error is, if anyone can help me get this to run, thanks everyone!</p> <p>-Kyle</p> <p>OK, I updated with the first two answers, Thanks so far, but two more errors Im not really understanding. </p> <pre><code>import java.io.*; import java.util.Scanner; import java.io.BufferedReader; import java.io.File; public class Lab3 { public static void main(String[] args) throws IOException{ System.out.print("Name of file with array: "); Scanner readIn = new Scanner(System.in); String input=readIn.nextLine();} **testScan1(input);** //Return Type for method is missing (but I am trying to call the method here) public static void testScan1(String filename) { File file = new File(filename); Scanner scan; int [] array = new int[5]; try{ scan = new Scanner( file ); } catch ( java.io.FileNotFoundException e ) { System.out.println( "couldn't open. file not found " ); return; } while(scan.hasNext()) { for( int i = 0; i &lt;= file.length(); ++i) { **array[i]=scan.next();** /*Type mismatch, cannot convert from sting to int. (I moved the declaration about try?)*/ } int partition(int arr[], int left, int right) { int i=left; int j = right; int tmp; int pivot = arr[(left+right)/2]; while (i&lt;=j){ while(arr[i]&lt;pivot) i++; while (arr[j]&gt;pivot) j--; if (i&lt;=j){ tmp=arr[i]; arr[i]=arr[j]; arr[j]=tmp; i++; j--; } } return i; } void quickSort(int arr[], int left, int right){ int index = partition(arr, left, right); if (left&lt;index-1); quickSort(arr, left, index-1); if (index&lt;right) quickSort(arr, index, right); } } </code></pre>
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    1. COI'm just -1ing the question because it's not of general interest to anyone else besides the asker. no offense. good luck in class.
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