Errors vs Exceptions

In this post, we will learn the difference between Errors and Exceptions in Java. This is a frequently asked question in Java interviews for beginners. Let's dive into it.

Difference between Errors and Exceptions in Java

Features Errors Exceptions
Type Errors in Java are of type java.lang.Error. Exceptions in Java are of type java.lang.Exception.
Unchecked or Checked All errors in Java are unchecked type. Exceptions include both checked as well as unchecked types.
Known to Compiler Errors happen at runtime. They will not be known to the compiler. Checked exceptions are known to the compiler whereas unchecked exceptions are not known because they occur at runtime.
Recovery It is impossible to recover from errors. You can recover from exceptions by handling them through try-catch blocks.
Causes Errors are mostly caused by the environment in which the application is running. Exceptions are mainly caused by the application itself.
Examples Examples: java.lang.StackOverflowError, java.lang.OutOfMemoryError Examples: Checked Exceptions: SQLException, IOException Unchecked Exceptions: ArrayIndexOutOfBoundException, ClassCastException, NullPointerException


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