JAVA Constructors and Methods The variables declared in a class for the use of all methods of the class are called reference variables objects instance variables None of these reference variables objects instance variables None of these 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++; }} 3 2 1 None of these Compilation Error 3 2 1 None of these 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 2 and 4 1 and 3 3 and 4 1 and 2 2 and 4 1 and 3 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods Given the following piece of code:class Person{ public int number;}public class Test{ public void doIt(int i , Person p){ i = 5; p.number = 8; } public static void main(String args[]){ int x = 0; Person p = new Person(); new Test().doIt(x, p); System.out.println(x + " " + p.number); }}What is the result? 0 8 5 8 5 0 0 0 0 8 5 8 5 0 0 0 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods public class Test { }What is the prototype of the default constructor? None of these public Test( ) Test(void) public Test(void) Test( ) None of these public Test( ) Test(void) public Test(void) Test( ) ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What will be the return type of a method that not returns any value? None of these int double void None of these int double void ANSWER DOWNLOAD EXAMIANS APP
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