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JAVA Constructors and Methods

JAVA Constructors and Methods
In which area of memory, the system stores parameters and local variables whenever a method is invoked?

Stack
Heap
Storage Area
Array

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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 ) ; } }

2.0
None of these
Compile time error
0

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

double
void
None of these
int

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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( ) ) ) ; }}

0.5
0.0
10.0
1.0

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JAVA Constructors and Methods
What is the expected output?class Animal {Animal() {System.out.println("Animal");}}class Wild extends Animal{Wild() {System.out.println("Wild");super();}}public class Test {public static void main(String args[]) {Wild wild = new Wild();}}

Wild Animal
Compilation Error
Animal Wild
Runtime Exception

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

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

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