Slight problem with fraction calculator code

Hi, im new to Java but am ambitious to learn it. I have a slight problem with my code,

Code :

public class Fraction1 {
 
    // ============================================================
    // Instance variables
    // ============================================================
 
    /**
     * The numerator of the fraction.
     */
    private int numerator;
    /**
     * The denominator of the fraction.
     */
    private int denominator;  
 
    // ============================================================
    // Constructors
    // ============================================================
 
    /**
     * Constructor which takes coefficients explicity.
     * 
     * Behaviour: Constructs a fraction with the specified numerator and
     *            denominator. Remember that your fraction should *always* be
     *            stored in irreducible form.
     *
     * @param num   The numerator
     * @param denom The denominator
     */
 
    public Fraction1(int num, int denom);
	// Fill in this method
	private static void main(String[] args) {
	System.out.println("Enter numerator");
	System.out.println("Enter demoninator");
    }
}

The error i get is 'missing method body or declare abstract', so after a little googl'ing i thought i'd removed the semi colon afer 'public Fraction1(int num, int denom);' but this gives me more errors, such as 'error ';' expected' and it expects a semi colon after the same line i just removed it from :(

x