publicclassNullPointerExceptionExample{publicstaticvoidmain(String[]args){Stringmessage=null;// 1. 检查对象是否为空if(message!=null){System.out.println(message.length());}else{System.out.println("消息为空");}// 2. 使用Optional类Optional<String>optionalMessage=Optional.ofNullable(message);optionalMe...
In this article, we’ll cover the ten most common exceptions in Java, their causes, and their solutions. These exceptions account for over97% of all Java exceptions. Once you know how to handle them, you’ll be ready to tackle nearly any Java error that comes your way. Table of content...
Let's start with the basics of exception handling in Java before we move to more advanced topics. Thetry-catchis the simplest method of handling exceptions. Put the code you want to run in thetryblock, and any Java exceptions that the code throws are caught by one or morecatchblocks. Th...
it is sensible to account for the possibility of theInterruptedExceptionexception being thrown, but let the program move forward without crashing. In this type of scenario, the interrupt status can be reset without raising an exception, with the expectation...
How to handle Java ArithmeticException? By: Rajesh P.S.Java ArithmeticException is a runtime exception that occurs when an arithmetic operation encounters an exceptional condition, such as division by zero or an integer overflow. To handle ArithmeticException in Java, you can use try-catch blocks...
How to handle ElementClickInterceptedException in Selenium? Which solution to choose for handling ElementClickInterceptedException? Frequently Asked Questions Also, Check out this tutorial to Unlock the solution to handling the “ElementClickInterceptedException” in Selenium Java What is an ElementClickInte...
this tutorial, we’ll explore Java’sInterruptedException. First, we’ll quickly go through the life cycle of a thread with an illustration. Next, we’ll see how working in multithreaded applications can potentially cause anInterruptedException. Finally, we will see how to handle this exception. ...
We canpropagate it up in the stack to the caller method by usingthrowskeyword. In this case, the caller method needs to handle this exception. There are some scenarios where throwing an exception is not possible like in case ofRunnableinterfacerun()method, it won’t allow throwing an excepti...
1. Introduction to the Problem A Java program can stop the normal execution flow in the following case: Checked exception Unchecked exception Error Java compiler forces us to catch and handle the checked exceptions when we use a method that throws it. These checked exceptions are anticipated, for...
In Java, the java.lang.NullPointerException is a popular exception that is faced by programmers while working on web applications and programs. The error is raised when the code tries to access a reference variable that points to a null value. It can be