Thread: Problems with my prime finder program

I am having trouble with my prime finder program. This program allows the user to enter a number than finds the prime of that number. Example, if you enter five it will find the 5th prime (11). I am getting two errors in my program. One in the first statement in the main method and one for final curly bracket which completes the class. I checked all my curly brackets and they seem good. I also checked the syntax of my main method and that also seems good. acording to what I read in my text book, the program should work. could anyone help me figure this out. The program is below with the errors that a got added as comments.

Thanks,
Truck35

//PrimeWorker Class 
class PrimeWorker {
	int i, num, counter, j;
 
 
	//PrimeWorer Constructor
	PrimeWorker (int b) {
 
		num = b;
 
	}
	/* Get Prime Method is used to calculate prime numbers and keep count of every prime number
	 *  that is produced.  That number is then compared to the number entered into the 
	 *  computer by the user and returned.
	 */
	int get_prime() {
 
 
		counter = 0;
 
		for (i=2;;){
 
 
			for (j=2; j <= i/j; j++){
				if ((i%j) != 0){
					counter++;
		    }
				if (counter == num){
					break;
		        }
		}
		return counter;
		}
 
 
 
 
 
 
 
}
 
public class PrimeLocator {
 
	/**
	 * This program will ask the user which prime number they want, find it, and return the value.
	 */
	/*I got the following error message "The method main cannot be declared static, 
	 * static methods can only be declared in static or top level type".*/
	public static void main(String args[]) 
	throws java.io.IOException {
		int x;
 
		//Asks the user to enter which prime number they want to find.
		System.out.println("Please enter number prime you want to find: ");
		x = (int) System.in.read();
		PrimeWorker number = new PrimeWorker (x);
 
		//Displays the prime number the user wanted to find.
		System.out.println("The " + x + "th prime is " + number.get_prime());
 
 
 
   }
//Got the following error, "Syntax error, insert "}" to complete class body".
}

/*I got the following error message "The method main cannot be declared static,
* static methods can only be declared in static or top level type".*/
public static void main(String args[])
throws java.io.IOException {

And the second error I got was:

//Got the following error, "Syntax error, insert "}" to complete class body".
}

Please help me with my program.
Thanks,
Truck35

Originally Posted by Norm

The message says it all. A static method must be at the top level class or in a static class.


Again the error message says what to do. Check that the class has an ending }
All {s should have a }

One problem the code has is its poor formatting. The { and } are not properly aligned. It is hard to see the ending } that goes with the starting {

Originally Posted by Norm

I checked all my curly brackets and they are correct. I don't know what is meant by static method. according to my book the program should work. Please help me any way you can.

Thanks,
Truck35

I

put ur PrimeLocator class in another new class and make sure u specify it as the main class to be executed.... then call the PrimeWorker class and its methods from PrimeLocator