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

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

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

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Declaration and Access Control
What will be the output after the following program is compiled and executed?public class Test{ public static void main(String args[]){ int x = 10; x = myMethod(x--); System.out.print(x); } static int myMethod(final int x){ return x--; }}

The will compile successfully and display 9 as output.
None of these
The program will lead to runtime error.
The program will lead to compilation error.
The program will compile successfully and display 10 as output.

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Declaration and Access Control
What will be the output for the below code?static public class Test{ public static void main(String[] args){ char c = 'a'; switch(c){ case 65 : System.out.println("one");break; case 'a': System.out.println("two");break; case 3 : System.out.println("three"); } }}

two
Compile error - char can't be permitted in switch statement.
Compile error - Illegal modifier for the class Test; only public, abstract & final are permitted.
None of these
one

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