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();
None of these
A a = new B(5);
A a = new A(String s);
All of these

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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 one two
two one one
one Exception

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JAVA Constructors and Methods
class MyClass{int i;int j;public MyClass(int i, int j){this.i = i;this.j = j;}public void call(){System.out.print("One");}}public class Test{public static void main(String args[]){MyClass m = new MyClass(); //line 1m.call(); //line 2}}

Compilation fails due to an error on line 2
One
Compilation fails due to an error on line 1
Compilation succeed but no output.

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