Exception Handling

Question 1

An ____ is an ____or unexpected ____ that happens while the program is running.

Answer 1

exception, error, situation

Question 2

What are the common Causes of Exception Handling

Answer 2

• The program asks for input, but the user enters the wrong type of data (e.g., text instead of a number).
• The program tries to divide a number by
  zero, which is not allowed in math.
• The program accesses an array index that doesn’t exist (e.g., using a negative index or going beyond the last element).

Question 3

Why are they called “Exceptions”?

Answer 3

They are unusual cases, or
“exceptions” to the usual process.

Question 4

________ refers to techniques that Java uses to ____, ____, and respond to _____ in a controlled way.

Answer 4

Exception handling, detect, handle, errors.

Question 5

Exception Handling uses ________ concepts to manage these problems.

Answer 5

object-oriented programming (OOP)

Question 6

A ________ happens while the program is running.

Answer 6

runtime exception

Question 7

A ______ is a mistake in the code structure, like missing a semicolon, and is found _____ the program runs (during compilation).

Answer 7

syntax error, before

Question 8

What are the two types of main classes Java handles?

Answer 8

Exception and Error

Question 9

Both of these classes come from a ______ called _______, and like all Java classes, they also come from the base class ______.

Answer 9

parent class, Throwable, Object

Question 10

This represents serious system-level problems. These are issues that the program cannot fix by itself.

Answer 10

Error Class

Question 11

This represents serious system-level problems. These are issues that the program cannot fix by itself.

Answer 11

Exception Class

Question 12

What happens when a Java program could have avoided a problem but didn’t?

Answer 12

Java throws an Exception and displays an error message.

Question 13

What does Java do if a program tries to divide by zero?

Answer 13

Java throws an ArithmeticException.

Question 14

How many categories of Exceptions does Java acknowledges?

Answer 14

More than 75 exceptions

Question 15

What Is a Crash in Programming?

Answer 15

A crash means that the program stops running suddenly because of an error.

Question 16

What happens when a program crashes?

Answer 16

User will see an error message and the program will stop before completing its task

Question 17

A list of method calls shown in the error message is called a _______.

Answer 17

stack trace

Question 18

A _____ means that the program ________ because of an _____.

Answer 18

crash, stops running suddenly, error

Question 19

This shows the sequence of method calls that led to the error.

Answer 19

stack trace

Question 20

The term originally referred to physical problems with hard drives but now applies to software errors too.

Answer 20

Crash

Question 21

This helps programmers locate and understand where the problem happened.

Answer 21

stack trace

Question 22

What kind of program keeps running even if something goes wrong, possibly reducing performance or features without crashing?

Answer 22

fault-tolerant program

Question 23

What kind of program can handle unexpected problems and remain more reliable under stress or errors?

Answer 23

robust program

Question 24

With _______ makes your program safer, smarter, and user-friendly.

Answer 24

Exception handling

Question 25

In object-oriented programming, what happens when something goes wrong during program execution, and how can you handle the problem properly using special code?

Answer 25

an exception is thrown, and You can write special code “try” to “catch” the exception and handle the problem properly.

Question 26

How can a try block help prevent crashes caused by incorrect user input, such as when a user enters a letter instead of a number in a nextInt() method?

Answer 26

With a try block, you can catch such input mistakes and handle them properly.