Software Design Engineer 1 Interview Questions and Answers

final, finally, and finalize are three different concepts in Java.

• final is a keyword used to declare a constant value that cannot be changed

• finally is a block of code that is executed after a try-catch block, regardless of whether an exception is thrown or not

• finalize is a method that is called by the garbage collector before an object is destroyed

• final can be used with variables, methods, and classes

• finally is used to release resources or perform cleanup operations

• finalize i...read more

Java has two types of exceptions: checked and unchecked.

• Checked exceptions are checked at compile-time and must be handled or declared.

• Unchecked exceptions are not checked at compile-time and can be handled or not.

• Examples of checked exceptions: IOException, ClassNotFoundException.

• Examples of unchecked exceptions: NullPointerException, ArrayIndexOutOfBoundsException.