JAVA Constructors and Methods class A{ A(String s){} A(){}}1. class B extends A{2. B(){}3. B(String s){4. super(s);5. }6. void test(){7. // insert code here8. }9. }Which of the below code can be insert at line 7 to make clean compilation ? A a = new A(String s); None of these A a = new B(5); All of these A a = new B(); A a = new A(String s); None of these A a = new B(5); All of these A a = new B(); ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the expected output?public class Profile { private Profile(int w) { // line 1 System.out.print(w); } public static Profile() { // line 5 System.out.print (10); } public static void main(String args[]) { Profile obj = new Profile(50); }} 50 10 50 Won't compile because of line (1), constructor can't be private Won't compile because of line (5), constructor can't be static 50 10 50 Won't compile because of line (1), constructor can't be private Won't compile because of line (5), constructor can't be static ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What will be the result of compiling and running the given code?class A{ int b=10; private A(){ this.b=7; } int f(){ return b; }}class B extends A{ int b;}public class Test{ public static void main(String[] args){ A a = new B(); System.out.println(a.f()); }} None of these Compilation Fails Prints 7 Prints 0 Prints 10 None of these Compilation Fails Prints 7 Prints 0 Prints 10 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the expected output?class Animal {Animal() {System.out.println("Animal");}}class Wild extends Animal{Wild() {System.out.println("Wild");super();}}public class Test {public static void main(String args[]) {Wild wild = new Wild();}} Compilation Error Runtime Exception Animal Wild Wild Animal Compilation Error Runtime Exception Animal Wild Wild Animal ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods public class Test { }What is the prototype of the default constructor? public Test( ) Test(void) Test( ) public Test(void) None of these public Test( ) Test(void) Test( ) public Test(void) None of these ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output of the program?class Test{ public int display(int x, int y){ return ("The sum of x and y is " + x + y); } public static void main(String args[]){ Test test = new Test(); System.out.println(test.display(4,5)); } } does not compile The sum of x and y is 9 The sum of x and y is 45 None of these does not compile The sum of x and y is 9 The sum of x and y is 45 None of these ANSWER DOWNLOAD EXAMIANS APP
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