question 1)

what will happen when you attempt to compile and run this code

abstract class base{
        abstract public void myfunc();
        public void another(){
        system.out.println("another method");
        }
}

public class abs extends base{
        public static void main(string argv[]){
        abs a = new abs();
        a.amethod();
        }
        public void myfunc(){
                system.out.println("my func");
                } 
        public void amethod(){
        myfunc();      
        }
}

1) the code will compile and run, printing out the words "my func"
2) the compiler will complain that the base class has non abstract methods
3) the code will compile but complain at run time that the base class has non abstract methods
4) the compiler will complain that the method myfunc in the base class has no body, nobody at all to looove it

question 2)
what will happen when you attempt to compile and run this code?

public class mymain{
public static void main(string argv){
        system.out.println("hello cruel world");
        }
}

1) the compiler will complain that main is a reserved word and cannot be used for a class
2) the code will compile and when run will print out "hello cruel world"
3) the code will compile but will complain at run time that no constructor is defined
4) the code will compile but will complain at run time that main is not correctly defined

question 3)

which of the following are java modifiers?

1) public
2) private
3) friendly
4) transient
5) vagrant

question 4)

what will happen when you attempt to compile and run this code?

class base{
        abstract public void myfunc();
        public void another(){
        system.out.println("another method");
        }
}

public class abs extends base{
        public static void main(string argv[]){
        abs a = new abs();
        a.amethod();
        }

        public void myfunc(){
                system.out.println("my func");
                } 

        public void amethod(){
        myfunc();
        }
}

1) the code will compile and run, printing out the words "my func"
2) the compiler will complain that the base class is not declared as abstract.
3) the code will compile but complain at run time that the base class has non abstract methods
4) the compiler will complain that the method myfunc in the base class has no body, nobody at all to looove it

question 5)

why might you define a method as native?

1) to get to access hardware that java does not know about
2) to define a new data type such as an unsigned integer
3) to write optimised code for performance in a language such as c/c++
4) to overcome the limitation of the private scope of a method

question 6)

what will happen when you attempt to compile and run this code?

class base{
public final void amethod(){
        system.out.println("amethod");
        }
}

public class fin extends base{
public static void main(string argv[]){
        base b = new base();
        b.amethod();
        }
}

1) compile time error indicating that a class with any final methods must be declared final itself
2) compile time error indicating that you cannot inherit from a class with final methods
3) run time error indicating that base is not defined as final
4) success in compilation and output of "amethod" at run time.

question 7)

what will happen when you attempt to compile and run this code?

public class mod{
public static void main(string argv[]){
    }
        public static native void amethod();

}

1) error at compilation: native method cannot be static
2) error at compilation native method must return value
3) compilation but error at run time unless you have made code containing native amethod available
4) compilation and execution without error

question 8)

what will happen when you attempt to compile and run this code?

private class base{}
public class vis{
        transient int  ival;
        public static void main(string elephant[]){
        }
}

1)compile time error: base cannot be private
2)compile time error indicating that an integer cannot be transient
3)compile time error transient not a data type
4)compile time error malformed main method

//file p1.java
package mypackage;
class p1{
void afancymethod(){
        system.out.println("what a fancy method");
        }
}
//file p2.java
public class p2 extends p1{
    public static void main(string argv[]){
 p2 p2 = new p2();
 p2.afancymethod();
    }
}

public class myar{
public static void main(string argv[]){
        int[] i = new int[5];
        system.out.println(i[5]);
        }
}