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); All of these A a = new B(5); A a = new B(); None of these A a = new A(String s); All of these A a = new B(5); A a = new B(); 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 examians() throws IOException{} void examians() throws IOException{} void examians() throw IOException{} void examians(void) throws IOException{} void examians() {} throws IOException examians() throws IOException{} void examians() throws IOException{} void examians() throw IOException{} void examians(void) throws IOException{} ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods Determine Output:class A{public static void method(int i){System.out.print("Method 1");}public static int method(String str){System.out.print("Method 2");return 0;}}public class Test{ public static void main(String args[]){A.method(5);}} Method 2 None of these Method 1 Compile time error as final method can't be overloaded Method 2 None of these Method 1 Compile time error as final method can't be overloaded 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 ) ; } } 0 Compile time error None of these 2.0 0 Compile time error None of these 2.0 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 one Exception two one one one one two Compilation Error None of these one Exception two one one one one two Compilation Error ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods Which of the following statements regarding static methods are correct?1. Static methods are difficult to maintain, because you can not change their implementation.2. Static methods can be called using an object reference to an object of the class in which this method is defined.3. Static methods are always public, because they are defined at class-level.4. Static methods do not have direct access to non-static methods which are defined inside the same class. 1 and 2 3 and 4 1 and 3 2 and 4 1 and 2 3 and 4 1 and 3 2 and 4 ANSWER DOWNLOAD EXAMIANS APP
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