Declaration and Access Control Choose the correct statement. Restriction on static methods are: I. They can only call other static methods.II. They must only access static data.III. They cannot refer this or super in any way. (I), (II) and (III) Only (III) (I) and (II) (II) and (III) Only (I) (I), (II) and (III) Only (III) (I) and (II) (II) and (III) Only (I) ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control Consider the following two classes declared and defined in two different packages, what can be added in class B to form what considered a correct access to class A from main() method of class B?package subPackage;public class A { }package anotherPackage;// line 1public class B{public static void main(String[] args){// line 2}}1. At line1 add noting; At line2 add: new A();2. At line 1 add: import package.*; at line 2 add : new subPackage.A();3. At line 1 add: import subPackage.*; at line 2 add : new A();4. At line 1 add: import subPackage.A; at line 2 add : new A(); 1 and 3 1 and 2 2 and 4 3 and 4 1 and 3 1 and 2 2 and 4 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
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 protected. Declare the method with the keyword public and private. Declare the method with the keyword public. Declare the method with the keyword private. Do not declare the method with any accessibility modifiers. Declare the method with the keyword protected. Declare the method with the keyword public and private. Declare the method with the keyword public. Declare the method with the keyword private. Do not declare the method with any accessibility modifiers. ANSWER DOWNLOAD EXAMIANS APP
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 program will lead to compilation error. None of these The program will lead to runtime error. The program will compile successfully and display 10 as output. The will compile successfully and display 9 as output. The program will lead to compilation error. None of these The program will lead to runtime error. The program will compile successfully and display 10 as output. The will compile successfully and display 9 as output. ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control What is the result of compiling and running the following code?class Base{ private Base(){ System.out.print("Base"); }}public class test extends Base{ public test(){ System.out.print("Derived"); } public static void main(String[] args){ new test(); }} Compilation Error Derived Exception is thrown at runtime BaseDerived Compilation Error Derived Exception is thrown at runtime BaseDerived ANSWER DOWNLOAD EXAMIANS APP
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;}} IllegalArgumentException is thrown at runtime. InsideDemo 10 Hello2 Hello2 InsideDemo 10 InsideDemo 10 Hello2 hello1 Compilation error. IllegalArgumentException is thrown at runtime. InsideDemo 10 Hello2 Hello2 InsideDemo 10 InsideDemo 10 Hello2 hello1 Compilation error. ANSWER DOWNLOAD EXAMIANS APP
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