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(5); A a = new B(); All of these A a = new A(String s); None of these A a = new B(5); A a = new B(); All of these A a = new A(String s); None of these 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() throws IOException{} void examians() throw IOException{} examians() throws IOException{} void examians(void) throws IOException{} void examians() {} throws IOException void examians() throws IOException{} void examians() throw IOException{} examians() throws IOException{} void examians(void) throws IOException{} ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods The main method should be static for the reason It can be accessed easily by the class loader. None of these It can be accessed by every method or variable without any hindrance. It can be executed without creating any instance of the class. It can be accessed easily by the class loader. None of these It can be accessed by every method or variable without any hindrance. It can be executed without creating any instance of the class. 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();}} Wild Animal Animal Wild Runtime Exception Compilation Error Wild Animal Animal Wild Runtime Exception Compilation Error ANSWER DOWNLOAD EXAMIANS APP
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 ) ; } } 2.0 Compile time error None of these 0 2.0 Compile time error None of these 0 ANSWER DOWNLOAD EXAMIANS APP
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