Troubleshooting Java

In this category, you can expect to find informative articles, step-by-step guides, and practical solutions to help programmers debug and resolve Java-related problems. Whether it’s resolving compilation errors, tackling runtime exceptions, optimizing performance, or dealing with compatibility issues, “Troubleshooting Java” provides valuable insights and practical tips to enhance the troubleshooting skills of Java developers at all levels of expertise.

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The purpose of this tutorial is to address a common issue that many Java developers encounter when working with the Scanner class. Specifically, we’ll discuss the challenge of using nextLine() after calling nextInt(). When utilizing the Scanner class to read input from the user, it’s not uncommon to encounter unexpected behavior when calling nextLine() immediately…

Read More Handling Scanner’s nextLine() after nextInt()
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The java.lang.OutOfMemoryError is a runtime exception in Java that occurs when the Java Virtual Machine (JVM) exhausts all available memory and is unable to allocate more memory to fulfill the memory requirements of an application. This error indicates that the application has run out of heap space and is unable to create new objects or…

Read More java.lang.OutOfMemoryError: Resolving Memory Management Issues
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The java.sql.SQLException: No Suitable Driver Found error is a common issue encountered when working with Java Database Connectivity (JDBC) to establish a connection with a database. This error typically occurs when the JDBC driver required to connect to a specific database is not found or not properly configured in the application. It is an indication…

Read More Resolving java.sql.SQLException: No Suitable Driver Found
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The “Too Many Clients” issue in PostgreSQL occurs when the number of concurrent client connections exceeds the configured maximum limit. When this happens, the PostgreSQL server is unable to accept any new connections, leading to the org.postgresql.util.PSQLException: FATAL error. This error message indicates that the database server has reached its maximum capacity for handling client…

Read More PostgreSQL: FATAL Error – Dealing with ‘Too Many Clients’