HowProgOne: HowProgOne

How does PreparedStatement impact performance or memory usage?

PreparedStatement Java JDBC SQL performance database optimization memory usage SQL injection prevention

When should you prefer DriverManager and when should you avoid it?

JDBC DriverManager Connection Pooling Database Connection Java Database Connectivity

How do you test code that uses security pitfalls in serialization?

serialization deserialization security vulnerabilities code injection testing PHP serialization risks

How do you use SSL/TLS over HTTP with a simple code example?

SSL TLS HTTPS secure connection Java HttpsURLConnection web security encryption

What are alternatives to timeouts and retries and how do they compare?

Circuit Breaker Fallback Mechanism Rate Limiting Load Shedding Alternatives to Timeouts Retries

What are best practices for working with HttpURLConnection (legacy)?

Keywords: HttpURLConnection Java HTTP networking API best practices

How does DatagramSocket (UDP) impact performance or memory usage?

DatagramSocket UDP performance memory usage Java networking connectionless protocol

How has VarHandle changed in recent Java versions?

VarHandle Java 9 Java 11 Java 17 concurrent programming field access atomic operations

What are security considerations for ss command?

Linux ss command network security socket analysis system commands

How to troubleshoot issues with traceroute command?

traceroute network diagnostic troubleshoot traceroute ICMP packets network issues

What are best practices for using checking package info?

Best practices package management Linux package info command-line installation system maintenance

What are common mistakes developers make with Externalizable?

Externalizable Java serialization writeExternal readExternal serialization mistakes Java developers

How do you test code that uses jmap?

jmap Java memory analysis profiling Java application monitoring memory usage

What are alternatives to hostname command?

hostname Linux alternatives to hostname command uname /proc/sys/kernel/hostname getent nmcli

What is finalize (deprecated) and cleaners in Java?

finalize cleaners Java resource management garbage collection

What are common mistakes developers make with BufferedInputStream / BufferedReader?

BufferedInputStream BufferedReader Java I/O common mistakes resource management character encoding

How does ifconfig vs ip command work internally in Linux?

ifconfig ip command network configuration Linux networking net-tools iproute2 network management system calls ioctl netlink socket

What are best practices for working with Error vs Exception?

Error Exception Java error handling programming best practices

What are common mistakes developers make with finally block semantics?

Java finally block exception handling resource management

What is try-with-resources in Java?

try-with-resources Java resource management AutoCloseable exception handling