Declaration and Access Control Which statements are most accurate regarding the following classes?class A{ private int i; protected int j;}class B extends A{ private int k; protected int m;} An object of B contains data fields k, m. An object of B contains data fields i, j, k, m. An object of B contains data fields j, m. An object of B contains data fields j, k, m. An object of B contains data fields k, m. An object of B contains data fields i, j, k, m. An object of B contains data fields j, m. An object of B contains data fields j, k, m. ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control Choose all the lines which if inserted independently instead of "//insert code here" will allow the following code to compile:public class Test{ public static void main(String args[]){ add(); add(1);add(1, 2); }// insert code here} static void add(int... args, int y){} void add(Integer... args){} static void add(int[]... args){} static void add(int args...){} static void add(int...args){} static void add(int... args, int y){} void add(Integer... args){} static void add(int[]... args){} static void add(int args...){} static void add(int...args){} 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 ");}} r1 r4 pre b1 b2 post r1 r4 pre b1 b2 post r3 r2 r1 r4 pre b1 b2 r3 r2 post Compilation fail pre r1 r4 b1 b2 r2 r3 post r1 r4 pre b1 b2 post r1 r4 pre b1 b2 post r3 r2 r1 r4 pre b1 b2 r3 r2 post Compilation fail pre r1 r4 b1 b2 r2 r3 post ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control The object is created with new keyword Depends on the code At run-time None of these At Compile-time Depends on the code At run-time None of these At Compile-time ANSWER DOWNLOAD EXAMIANS APP
Declaration and Access Control What can directly access and change the value of the variable qusNo?package com.mypackage;public class Test{ private int qusNo = 100;} Any class. None of these Any class that extends Test. Only the Test class. Any class in com.mypackage package. Any class. None of these Any class that extends Test. Only the Test class. Any class in com.mypackage package. 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 2 (must access x by writing Tester.x) 49 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 1 (static x must be only accessed inside static methods) Compile error at line 2 (must access x by writing Tester.x) 49 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 1 (static x must be only accessed inside static methods) ANSWER DOWNLOAD EXAMIANS APP
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