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Frequently Asked Java interview questions and answers for freshers

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(#M40031855) JAVA QUESTION Keep an EYE Keep an eye puzzle Keep an eye puzzle

What is the output of this program?

class area {
public static void main(String args[])
{
double r, pi, a;
r = 9.8;
p1 = 3.14;
a = pi * r * r;
System.out.println(a);
}
}
a) 301.5656
b) 301
c) 301.56
d) 301.56560000

Asked In Java Rajendra Singh (9 years ago)
Unsolved Read Solution (40)
Is this Puzzle helpful?   (56)   (17) Submit Your Solution Program

(#M40167132) JAVA QUESTION Exceptions 2 Keep an EYE Keep an eye puzzle Keep an eye puzzle

class ProductNotFoundException extends Exception {

//Some code

}

class Shop {

public void findProduct(int productId) throws ProductNotFoundException {

//some code

throw new ProductNotFoundException();

//some code

}

}

class ABCShop{

public void findProductsList(){

new Shop().findProduct(101);

}

}

Which of the following statement(s) are true for the above code?

A. This code will compile if we add throws ProductNotFoundException in the signature of method findProductsList().
B. This code will compile but returns no output
C. This code will compile if we add a try-catch block in findProductsList().
D. This code will compile if in method findProductsList () returns a list instead of void

Asked In Java Jax (1 year ago)
Unsolved Read Solution (1)
Is this Puzzle helpful?   (5)   (6) Submit Your Solution
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(#M40018857) JAVA QUESTION JAVA QUESTIONS Keep an EYE Keep an eye puzzle Keep an eye puzzle

public void test(int x)
{
int odd = 1;
if(odd) /* Line 4 */
{
System.out.println("odd");
}
else
{
System.out.println("even");
}
}

Which statement is true?

A. Compilation fails.
B. "odd" will always be output.
C. "even" will always be output.
D. "odd" will be output for odd values of x, and "even" for even values.

Asked In Java (9 years ago)
Unsolved Read Solution (21)
Is this Puzzle helpful?   (75)   (25) Submit Your Solution Program

(#M40167111) JAVA QUESTION Default method in java Keep an EYE Keep an eye puzzle Keep an eye puzzle

A default method in an interface can be either private or public or protected. State True or False.

Asked In Java Jax (1 year ago)
Unsolved
Is this Puzzle helpful?   (3)   (1) Submit Your Solution Functions

(#M40031853) JAVA QUESTION Keep an EYE Keep an eye puzzle Keep an eye puzzle

What is the output of this program?

class average {
public static void main(String args[])
{
double num[] = {5.5, 10.1, 11, 12.8, 56.9, 2.5};
double result;
result = 0;
for (int i = 0; i < 6; ++i)
result = result + num[i];
System.out.print(result/6);

}
}
a) 16.34
b) 16.566666644
c) 16.46666666666667
d) 16.46666666666666

Asked In Java Rajendra Singh (9 years ago)
Unsolved Read Solution (17)
Is this Puzzle helpful?   (82)   (31) Submit Your Solution Program

(#M40167137) JAVA QUESTION Java polymorphism Keep an EYE Keep an eye puzzle Keep an eye puzzle

class Mammal
{
String name= "Dog";
String makeNoise()
{
return "Bow Wow";
}
}

class Cat extends Mammal
{
String name="Cat";
String makeNoise()
{
return "Meow";
}
}

public class Main
{
void go()
{
Mammal m = new Cat();
System.out.println(m.name + m.makeNoise());
}
public static void main (String[] args)
{
new Main().go();
}
}

What is the output of the above program?

A. CatMeow
B. DogBow Wow
C. DogMeow
D. CatBow Wow

Asked In Java Jax (1 year ago)
Unsolved Read Solution (1)
Is this Puzzle helpful?   (6)   (1) Submit Your Solution

(#M40167136) JAVA QUESTION Checked vs unchecked Exceptions Keep an EYE Keep an eye puzzle Keep an eye puzzle

_____ exceptions are automatically propagated. To propogate _____ exceptions, the method should explicitly throw the exception using the throws keyword.

A. checked, unchecked
B. unchecked, checked

Asked In Java Jax (1 year ago)
Unsolved Read Solution (1)
Is this Puzzle helpful?   (2)   (0) Submit Your Solution

(#M40167130) JAVA QUESTION finally block Keep an EYE Keep an eye puzzle Keep an eye puzzle

finally block will get executed whether or not an exception occurs. State True or False

Asked In Java Jax (1 year ago)
Unsolved Read Solution (3)
Is this Puzzle helpful?   (0)   (0) Submit Your Solution Technical

(#M40031854) JAVA QUESTION Keep an EYE Keep an eye puzzle Keep an eye puzzle

What is the output of this program?

class conversion {
public static void main(String args[])
{
double a = 295.04;
int b = 300;
byte c = (byte) a;
byte d = (byte) b;
System.out.println(c + " " + d);
}
}
a) 38 43
b) 39 44
c) 295 300
d) 295.04 300

Asked In Java Rajendra Singh (9 years ago)
Unsolved Read Solution (12)
Is this Puzzle helpful?   (41)   (14) Submit Your Solution Program

(#M40167107) JAVA QUESTION Is Java is a structured programming language? Keep an EYE Keep an eye puzzle Keep an eye puzzle

State true or false. Java is a structured programming language.

A. True

B. False

Asked In Java Jax (1 year ago)
Unsolved Read Solution (2)
Is this Puzzle helpful?   (5)   (3) Submit Your Solution
Keep an EYE (0)
Solved Question (3) UnSolved Question (257)
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Dimple
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Time: 00:01:33
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