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JAVA Constructors and Methods

JAVA Constructors and Methods
The variables declared in a class for the use of all methods of the class are called

objects
reference variables
instance variables
None of these

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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
2
3
1

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JAVA Constructors and Methods
What is Math.floor(3.6)?

3
4.0
4
3.0

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JAVA Constructors and Methods
The implicit return type of a constructor is

There is no return type.
A class object in which it is defined.
None of these
void

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JAVA Constructors and Methods
public class MyClass{ }For the above class(MyClass) what is the correct way of declaring constructor?

public MyClass(){}
MyClass(void) {}
public MyClass(void){}
1 and 3
MyClass(){}

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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);}}

None of these
Method 2
Compile time error as final method can't be overloaded
Method 1

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