Check to see if a class is assignable to a number in Java

/*from w  w  w .j  a  v  a 2s . c o  m*/
import java.io.Serializable;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

public class Main {
  public static boolean isNumber(final Class dataType) {
    return Number.class.isAssignableFrom(dataType);
  }
  public static void main(final String[] args) {
    System.out.println(isNumber(Class.class));
    System.out.println(isNumber(Comparable.class));
    System.out.println(isNumber(Serializable.class));
    System.out.println(isNumber(Integer.class));
    System.out.println(isNumber(int.class));
    System.out.println(isNumber(Float[].class));
    System.out.println(isNumber(String.class));
    System.out.println(isNumber(double[].class));
    System.out.println(isNumber(boolean.class));
  }
}