JAVA Constructors and Methods public class Test { }What is the prototype of the default constructor? public Test( ) None of these Test(void) Test( ) public Test(void) public Test( ) None of these Test(void) Test( ) public Test(void) ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the expected output?public class Profile {private Profile(int w) { // line 1System.out.print(w);}public final Profile() { // line 5System.out.print(10);}public static void main(String args[]) {Profile obj = new Profile(50);}} Won't compile because of line (1); constructor can't be private Won't compile because of line (5); constructor can't be final 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 final 50 10 50 ANSWER DOWNLOAD EXAMIANS APP
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 B(); A a = new B(5); None of these A a = new A(String s); All of these A a = new B(); A a = new B(5); None of these A a = new A(String s); All of these ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods The implicit return type of a constructor is void A class object in which it is defined. None of these There is no return type. void A class object in which it is defined. None of these There is no return type. ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods Determine output:public class Test{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.val = 1; obj.call(obj); System.out.println(obj.val); }}class MyClass{ public int val; public void call(MyClass ref){ ref.val++; }} 2 None of these 1 Compilation Error 3 2 None of these 1 Compilation Error 3 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output for the below code?public class Test{ public static void printValue(int i, int j, int k){ System.out.println("int"); } public static void printValue(byte...b){ System.out.println("long"); } public static void main(String... args){ byte b = 9; printValue(b,b,b); }} None of these long Compilation clean but throws RuntimeException int Compilation fails None of these long Compilation clean but throws RuntimeException int Compilation fails ANSWER DOWNLOAD EXAMIANS APP
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