Null pointer exception is an “exception” (error) that is particularly common when programming in Java. For a beginner, this is a confusing and daunting message to receive, but it can be just ...

These Java Exception handling best practices provide software developers guidance when they develop new applications. Top 10 Java Exception handling best practices Here are the top 20 Java exception ...

Not sure what a try catch is? We explain how to use a try catch block in Java and how to write methods that throw exceptions.

What Is an Exception Handler in Java?. In Java, exceptions are one of many structures that govern the control flow of a program. Specifically, they are unintended side effects of a program's ...

java.sql.SQLException: Logical handle no longer valid </pre><BR><BR>I make this call over and over in for loops this happens in about the 14th call.<BR><BR>If you google on the subject line of ...

There a number of pure Java SQL database systems develolpers can embed into applications. In this tip we introduce two open source projects, HSQLDB and Apache Derby.

Microsoft has open sourced the Java language extension it added to SQL Server 2019 last year. Language extensions are used in SQL Server to allow users to execute code externally for queries. The ...

Get an overview of JDBC's architecture, then learn how to connect to a database and handle SQL queries and responses with PreparedStatements, transactions, connection pooling, and more.