Declaration and Access Control A package is a collection of Editing tools Classes and Interfaces Interfaces Editing tools and Interfaces Classes Editing tools Classes and Interfaces Interfaces Editing tools and Interfaces Classes 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 2 (must access x by writing Tester.x) 49 Compile error at line 1 (static x must be only accessed inside static methods) Compile error at line 4 (invalid argument type for method main) Compile error at line 3 (static methods can't make reference to non-static variables) Compile error at line 2 (must access x by writing Tester.x) 49 Compile error at line 1 (static x must be only accessed inside static methods) Compile error at line 4 (invalid argument type for method main) ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control What will be the output?public class Test{static{int a = 5;}public static void main(String args[]){new Test().call();}void call(){this.a++;System.out.print(this.a);}} 0 6 Runtime Exception 5 Compile with error 0 6 Runtime Exception 5 Compile with error ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control Suppose a class has public visibility. In this class we define a protected method. Which of the following statements is correct? From within protected methods you do not have access to public methods. This method is only accessible from inside the class itself and from inside all subclasses. In a class, you cannot declare methods with a lower visibility than the visibility of the class in which it is defined. This method is accessible from within the class itself and from within all classes defined in the same package as the class itself. From within protected methods you do not have access to public methods. This method is only accessible from inside the class itself and from inside all subclasses. In a class, you cannot declare methods with a lower visibility than the visibility of the class in which it is defined. This method is accessible from within the class itself and from within all classes defined in the same package as the class itself. ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control The object is created with new keyword At Compile-time None of these At run-time Depends on the code At Compile-time None of these At run-time Depends on the code ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control Name the keyword that makes a variable belong to a class, rather than being defined for each instance of the class. static volatile abstract final native static volatile abstract final native ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS