import java.lang.reflect.Method;
 
public class Main {
	public static void main(String[] args) {
		Main main = new Main();
		for(Method m : main.getClass().getDeclaredMethods()){
			System.out.println(m.getName() + ": " + Number.class.isAssignableFrom(m.getReturnType()));
		}
	}
 
	public static int mInt(){ return 1; }
 
	public static Integer mInteger(){ return 1; }
 
	public static double mDouble(){ return 1.0; }
 
	public static Double mDoubleD(){ return 1.0; }
}
 

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