JAVA Constructors and Methods Which of the modifier can't be used for constructors? public private static protected public private static protected ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output of the above program ?class Num { Num(double x ){ System.out.println( x ) ; } }public class Test extends Num { public static void main(String[] args){ Num num = new Num( 2 ) ; } } None of these 0 Compile time error 2.0 None of these 0 Compile time error 2.0 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods Which of these is a legal definition of a method named examveda assuming it throws IOException, and returns void. Also assume that the method does not take any arguments. Select the one correct answer. void examians() throws IOException{} void examians(void) throws IOException{} void examians() throw IOException{} examians() throws IOException{} void examians() {} throws IOException void examians() throws IOException{} void examians(void) throws IOException{} void examians() throw IOException{} examians() throws IOException{} void examians() {} throws IOException ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods class MyClass{ MyClass(){ System.out.print("one"); } public void myMethod(){ this(); System.out.print("two"); }} public class TestClass{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.myMethod(); }} None of these Compilation Error one Exception two one one one one two None of these Compilation Error one Exception two one one one one two 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()); }} Prints 10 Prints 0 Prints 7 None of these Compilation Fails Prints 10 Prints 0 Prints 7 None of these Compilation Fails 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++; }} None of these Compilation Error 3 1 2 None of these Compilation Error 3 1 2 ANSWER DOWNLOAD EXAMIANS APP
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