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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?

Storage Area
Heap
Array
Stack

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JAVA Constructors and Methods
The main method should be static for the reason

It can be executed without creating any instance of the class.
None of these
It can be accessed by every method or variable without any hindrance.
It can be accessed easily by the class loader.

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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++; }}

3
1
2
None of these
Compilation Error

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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()); }}

Prints 7
Compilation Fails
Prints 10
None of these
Prints 0

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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?

5 0
0 0
5 8
0 8

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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);}}

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

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