格林模拟试题三（上）(3)

 question 10)

which of the following statements are true?

1) a byte can represent between -128 to 127
3) a byte can represent between -256 to 256
question 11)

what will happen when you attempt to compile and run the following code

class base{ public void base(){system.out.println("base"); }}public class in extends base{ public static void main(string argv){in i=new in(); }}

1) compile time error base is a keyword
3) output of base
question 12)

you have a public class called myclass with the main method defined as follows

public static void main(string parm){ system.out.println(parm[0]);}

if you attempt to compile the class and run the program as follows

java myclass hello

what will happen?

1) compile time error, main is not correctly defined
3) compilation and output of  java
question 13)
which of the following statements are true?

1) if a class has any abstract methods it must be declared abstract itself.
3) when applied to a class, the final modifier means it cannot be sub-classed