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) and (II) Only (III) (I), (II) and (III) (II) and (III) Only (I) (I) and (II) Only (III) (I), (II) and (III) (II) and (III) Only (I) ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control What is the result of compiling and running the following code?public class Tester{static int x = 4;int y = 9; public Tester(){System.out.print(this.x); // line 1printVariables();}public static void printVariables(){System.out.print(x); // line 2System.out.print(y); // line 3}public static void main(String... args) { // line 4new Tester();}} Compile error at line 3 (static methods can't make reference to non-static variables) Compile error at line 1 (static x must be only accessed inside static methods) 49 Compile error at line 4 (invalid argument type for method main) Compile error at line 2 (must access x by writing Tester.x) Compile error at line 3 (static methods can't make reference to non-static variables) Compile error at line 1 (static x must be only accessed inside static methods) 49 Compile error at line 4 (invalid argument type for method main) Compile error at line 2 (must access x by writing Tester.x) ANSWER DOWNLOAD EXAMIANS APP
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 ");}} Compilation fail pre r1 r4 b1 b2 r2 r3 post r1 r4 pre b1 b2 post r3 r2 r1 r4 pre b1 b2 r3 r2 post r1 r4 pre b1 b2 post Compilation fail pre r1 r4 b1 b2 r2 r3 post r1 r4 pre b1 b2 post r3 r2 r1 r4 pre b1 b2 r3 r2 post r1 r4 pre b1 b2 post ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control A package is a collection of Classes and Interfaces Editing tools and Interfaces Editing tools Interfaces Classes Classes and Interfaces Editing tools and Interfaces Editing tools Interfaces Classes ANSWER DOWNLOAD EXAMIANS APP
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(); }} A block static static A None of these A static block A A block static static A None of these A static block A 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(); }} BaseDerived Derived Exception is thrown at runtime Compilation Error BaseDerived Derived Exception is thrown at runtime Compilation Error ANSWER DOWNLOAD EXAMIANS APP
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