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Frequently Asked Java Programming - Technical Technical Interview Questions

(#M40167115) JAVA QUESTION Inheritance relationship in Java Keep an EYE

Which of the following statements are correct with respect to inheritance relationship in java?

A. object of subclass referenced by super class type can invoke super class methods
B. object of subclass referenced by super class type can access newly defined sub class variables
C. object of subclass referenced by super class type can access super class variables
D. object of subclass referenced by super class type can invoke overridden sub class methods
E. object of subclass referenced by super class type can invoke newly defined sub class methods

Asked In Java Jax (3 years ago)

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(#M40167129) JAVA QUESTION try, catch and finally Keep an EYE

Which of the following statement(s) are not true?

A. For each try block there can be zero or more catch blocks but only one finally block
B. Finally block will get executed whether or not an exception occurs.
C. A try block must be followed only by at least one catch block
D. A try block has multiple catch block, then those exception handlers can be in any order

Asked In Java Jax (3 years ago)

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(#M40167133) JAVA QUESTION try, catch and finally Keep an EYE

Which of the given fact(s) are true with respect to the blocks and order of execution of blocks in "Exceptions"?

A. The try block can be followed by finally block and then followed by the catch blocks
B. One or more catch blocks which are exception handlers are placed immediately after the try block
C. Catch block has an argument which can accept an argument of any exception type and it is the name of a class that inherits from the Throwable class
D. The finally block always executes when the try block exits or when an exception occurs
E. The finally block is not executed when there is a return statement in the try block

Asked In Java Jax (3 years ago)

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(#M40167131) JAVA QUESTION Exceptions Keep an EYE

Observe the code.

public class Sample {

public static void main(String args[]) {

int i=10,j=0,k;

try {

k=i/j;

}

catch(Exception e) {

System.out.println("Exception");

}

catch(ArithmeticException e) {

System.out.println("Arithmetic exception");

}

}

}

Predict the output.

A. ArithmeticException
B. Compilation Fails
C. Exception
ArithmeticException
D. Runtime exception

Asked In Java Jax (3 years ago)

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(#M40167130) JAVA QUESTION finally block Keep an EYE

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

Asked In Java Jax (3 years ago)

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(#M40018859) JAVA QUESTION JAVA QUESTIONS Keep an EYE

public class While
{
public void loop()
{
int x= 0;
while ( 1 ) /* Line 6 */
{
System.out.print("x plus one is " + (x + 1)); /* Line 8 */
}
}
}


public class While
{
public void loop()
{
int x= 0;
while ( 1 ) /* Line 6 */
{
System.out.print("x plus one is " + (x + 1)); /* Line 8 */
}
}
}

Which statement is true?

A. There is a syntax error on line 1.
B. There are syntax errors on lines 1 and 6.
C. There are syntax errors on lines 1, 6, and 8.
D. There is a syntax error on line 6.

Asked In Java (12 years ago)

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(#M40167112) JAVA QUESTION Java question Keep an EYE

Which three statements are true?

A. A method with the same signature as a private final method in class X can be implemented in a subclass of X.
B. A protected method in class X can be overridden by a subclass of A only if the subclass is in the same package as X.
C. A private static method can be called only within other static methods in class X.
D. A public static method in class X can be called by a subclass of X without explicitly referencing the class X.
E. A protected method in class X can be overridden by any subclass of X.
F. A final method in class X can be abstract if and only if X is abstract.
G. A non-static public final method in class X can be overridden in any subclass of X.

Asked In Java Jax (3 years ago)

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(#M40166061) JAVA QUESTION efficient means of execution Keep an EYE

Which checks the object code to determine whether there are more efficient means of execution?
1)Interpreter
2) Linker
3)Compiler
4) Optimizer

Asked In Java Mehul KOTHARI (6 years ago)

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(#M40018819) JAVA QUESTION JAVA QUESTIONS Keep an EYE

Can you make a constructor final?

Asked In Java (12 years ago)

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(#M40018860) JAVA QUESTION JAVA QUESTIONS Keep an EYE

Which interface does java.util.Hashtable implement?
1) Java.util.Map
2) Java.util.List
3) Java.util.HashTable
4) Java.util.Collection

Asked In Java (12 years ago)

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