The UnknownHostException is an exception in Java that is thrown to indicate that the IP address of a host could not be determined. Since the UnknownHostException is a checked exception, it either needs to be thrown or surrounded by a try-catch block in code.

The SocketException is an exception in Java that is thrown to indicate that an error was encountered while creating or accessing a Socket. Since the SocketException is a checked exception, it either needs to be thrown or surrounded by a try-catch block in code.

One of the most important features of Java is the built-in garbage collector (GC), which automates memory management. The GC is capable of handling the majority of memory leak issues because it implicitly handles memory allocation and freeing. While the GC is capable of handling a significant amount of memory, it does not provide a guaranteed solution to memory leaks. The GC is intelligent, but not without flaws. Even with the most attentive developer's applications, memory leaks can occur.

Speed up Android build times with simple tweaks to the Java Development Kit and Gradle. After benchmarking build times for 3 projects with different JDK versions, JDK 17 is now also preinstalled on all build stacks to help you get the 9-20% speed improvements we did. Learn more and try them!

Java, the programming language powering over 3 billion devices, celebrated its 25th anniversary in 2020. Despite its age, this language is far from dead. As Brian Goetz, Java Language Architect at Oracle, has said, “If I had $1 for every time Java was declared dead, I could probably retire!”

The CloneNotSupportedException is an exception in Java that is thrown to indicate that the clone() method in class Object was called to clone an object, but that object's class does not implement the Cloneable interface. Applications that override the clone() method can also throw this exception to indicate that an object could not or should not be cloned.

The InstantiationException is a runtime exception in Java that occurs when an application attempts to create an instance of a class using the Class.newInstance() method, but the specified class object cannot be instantiated. Since the InstantiationException is an unchecked exception, it does not need to be declared in the throws clause of a method or constructor.

The EmptyStackException is a runtime exception in Java that is thrown by methods in the Stack class to indicate that the stack is empty. Since the EmptyStackException is an unchecked exception, it does not need to be declared in the throws clause of a method or constructor.

Java is one of the most widely used programming languages because of its principle of “compile once, run anywhere.” Its many syntax constraints, though, mean that writing code in a basic text editor can become tedious. You can use an integrated development environment (IDE) like IntelliJ IDEA to improve your output, with features like compile-time error suggestions and intelligent code completion. One of the most helpful functions of IntelliJ is its debugging capacity.