Illegal expression during if statement (Java)

I am trying to code a text-based calculator with the ability to calculate long calculations in Java netbeans. During the coding of a conceptual piece of code I got an error message saying that my if statement had an illegal start of expression. I am new to programming, but a more experienced friend of mine who helped me couldn't figure out the problem either. The code looks like this:

package eksamensprojekt;

public class Eksamensprojekt {

public static void main(String[] args) {

    java.util.Scanner tastatur = new java.util.Scanner(System.in);
    String regnestykke;
    System.out.println("Skriv dit regnestykke");
    regnestykke = tastatur.nextLine();

    if(regnestykke.contains(*))
        {
    System.out.println("123");

}

} }

Right now we are just trying to make it check if there is a * sign in the text you write into 'regnestykke'. Anyway, it would be great if one of you could tell us what is wrong. Sorry if the answer is obvious.