13) What is the type and value of the following expression? (Notice the integer division)
-4 + 1/2 + 2*-3 + 5.0

(a) int -5 (b) double -4.5
(c) int -4
(d) double -5.0 (e) None of the above.

14) What is printed by the following statement?
System.out.print(“Hello,\nworld!”);

(a) Hello, \nworld! (b) Hello, world!
(c)
(d) “Hello, \nworld!” (e) None of the above.

15) Consider the two methods (within the same class)
public static int foo(int a, String s)
{
s = “Yellow”;
a=a+2;
return a;
}
public static void bar()
{
int a=3;
String s = “Blue”;
a = foo(a,s);
System.out.println(“a=”+a+” s=”+s);
}
public static void main(String args[])
{
bar();
}

What is printed on execution of these methods?

(a) a = 3 s = Blue (b) a = 5 s = Yellow (c) a = 3 s = Yellow
(d) a = 5 s = Blue (e) none of the above.

16) Which of the following variable declaration would NOT compile in a java program?

(a) int var; (b) int VAR; (c) int var1; (d) int var_1; (e) int 1_var;.

17) Consider the following class definition:

public class MyClass
{
private int value;
public void setValue(int i){ / code / }
// Other methods…
}

The method setValue assigns the value of i to the instance field value. What could you write for the implementation of setValue?

(a) value = i; (b) this.value = i; (c) value == i;
(d) Both (A) and (B) and above (e) (A), (B) and (C) above.

18) Which of the following is TRUE?

(a) In java, an instance field declared public generates a compilation error.
(b) int is the name of a class available in the package java.lang
(c) Instance variable names may only contain letters and digits.
(d) A class has always a constructor (possibly automatically supplied by the java compiler).
(e) The more comments in a program, the faster the program runs.

19) A constructor

(a) Must have the same name as the class it is declared within.
(b) Is used to create objects.
(c) May be declared private
(d) Both (A) and (B) above
(e) (a), (b) and (c) above.

20) Consider,

public class MyClass
{
public MyClass(){/code/}
// more code…
}

To instantiate MyClass, you would write?

(a) MyClass mc = new MyClass();
(b) MyClass mc = MyClass();
(c) MyClass mc = MyClass;
(d) MyClass mc = new MyClass;
(e) The constructor of MyClass should be defined as, public void MyClass(){/code/}.

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1. Linkedin
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10 ICT iitk
11 NPTEL

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1. Microsoft Excel Help Center
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1. Ambitionbox
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3. Geeksforgeeks
4. Leetcode
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8. InterviewUp
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10. Indiabix

New C++ features in GCC 10
https://developers.redhat.com/blog/2020/09/24/new-c-features-in-gcc-10/

C

Top 5 programming languages that every beginner should learn in 2020 | TechGig
https://content.techgig.com/top-5-programming-languages-that-every-beginner-should-learn-in-2020/articleshow/78279537.cms

Windows XP source code leaks online - The Verge
https://www.theverge.com/2020/9/25/21455655/microsoft-windows-xp-source-code-leak