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JAVA Constructors and Methods

JAVA Constructors and Methods
Determine output of the following program.public class Test{ public static void main(String args[]){ System.out.println( Math.floor( Math.random( ) ) ) ; }}

1.0
10.0
0.5
0.0

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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.
void
None of these

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JAVA Constructors and Methods
Which of the modifier can't be used for constructors?

private
protected
public
static

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JAVA Constructors and Methods
What will be the return type of a method that not returns any value?

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

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JAVA Constructors and Methods
What will be the result of compiling and running the given code?class A{ int b=10; private A(){ this.b=7; } int f(){ return b; }}class B extends A{ int b;}public class Test{ public static void main(String[] args){ A a = new B(); System.out.println(a.f()); }}

None of these
Prints 0
Compilation Fails
Prints 7
Prints 10

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