Declaration and Access Control
What is the output for the below code ?public class A{ static{ System.out.println("static"); } { System.out.println("block"); } public A(){ System.out.println("A"); } public static void main(String[] args){ A a = new A(); }}

static A
A block static
A
static block A
None of these

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Declaration and Access Control
A method within a class is only accessible by classes that are defined within the same package as the class of the method. Which one of the following is used to enforce such restriction?

Declare the method with the keyword public and private.
Do not declare the method with any accessibility modifiers.
Declare the method with the keyword public.
Declare the method with the keyword private.
Declare the method with the keyword protected.

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Declaration and Access Control
Determine output:public class InitDemo{static int i = demo();static{ System.out.print(i); }InitDemo(){System.out.print("hello1");}public static void main(String... args){ System.out.print("Hello2");} static int demo(){ System.out.print("InsideDemo");return 10;}}

Hello2 InsideDemo 10
InsideDemo 10 Hello2
InsideDemo 10 Hello2 hello1
IllegalArgumentException is thrown at runtime.
Compilation error.

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Declaration and Access Control
Determine output:class A{{System.out.print("b1 ");}public A(){System.out.print("b2 ");}}class B extends A{static{System.out.print("r1 ");}public B(){System.out.print("r2 ");}{System.out.print("r3 ");}static{System.out.print("r4 ");}}public class Test extends B{public static void main(String[] args){System.out.print("pre ");new Test();System.out.println("post ");}}

r1 r4 pre b1 b2 r3 r2 post
Compilation fail
r1 r4 pre b1 b2 post
pre r1 r4 b1 b2 r2 r3 post
r1 r4 pre b1 b2 post r3 r2

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