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POPerfect number method
 

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    <p>This program is supposed to take user input and determine whether or not it is a perfect number. When I try to compile it, I get the error Method testPerfect in class scalvert_Perfect cannot be applied to given types; </p> <ul> <li>testPerfect(num);</li> <li>required :int, int</li> <li>found: int </li> <li>reason: actual and formal argument list differ in length</li> </ul> <p>My code:</p> <pre><code>import java.util.Scanner; public class scalvert_Perfect { public static void main ( String args[] ) { Scanner input = new Scanner(System.in); int test; int num = 0; int counter = 0; do { System.out.print("How many numbers would you like to test? "); test = input.nextInt(); }while(test &lt; 1); do { System.out.print("Please enter a possible perfect number: "); num = input.nextInt(); testPerfect(num); printFactors(num); counter++; }while(counter &lt; test); } public static boolean testPerfect(int num, int test) { int sum = 0; for(int i = 0; i &lt; test ; i++) { if(num % i == 0) { sum += i; } } if(sum == num) { return true; } else { return false; } } public static void printFactors(int num) { int x; int sum = 0; for(int factor = num - 1 ; factor &gt; 0; factor--) { x = num % factor; if (x == 0) { sum = sum+factor; } } if(sum != num) { System.out.printf("%d:NOT PERFECT",num); } if(sum == num) { System.out.printf("%d: ",num); for(int factor=1; factor &lt; num; factor++) { x = num % factor; if(x == 0) { System.out.printf("%d ",factor); } } } System.out.print("\n"); sum = 0; } } </code></pre>
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