Written for the working programmer who wants more speed out of Java, Java Performance and Scalability, Volume 1 bundles several dozen tips on Java code smaller and faster. The-depth examination of the costs and benefits of the merger of the string and the provisions of Java String objects will help you find potential hot spots that cause lagging performance with strings. The next sections look at more general strategies for faster programs, such as clean up obsolete code, and the famous 80-20 rule (20 percent to optimize your code that consumes 80 percent of processing time, allowing you to make the software more quickly, this book shows you how .) quick tips about like a collection of Java APIs and Java Native Interface (JNI) come next. The second part of the zero books on server-side performance is better with tips on caching and file I O. / (One of the main points of this book is that you can write faster custom code, rather than always relying on built-in Java classes and APIs.) Clearly, Java performance is not something that happens by chance, but must be engineered into your code Dragan. - Richard Topics covered: Introduction to Java performance more efficient Java string handling (optimize String, StringBuffer, and StringTokenizer object) Reducing Java overhead Rules 80-20 Fast initialization for optimization Eliminate obsolete code Accelerate JDK 1.1 Vector and Hashtable collection class file I Optimizes Caching techniques / O and buffering Object object pool recycling and Techniques for multithreading and synchronization Amdahl law and scalability basics The pros and cons of using Java Native Interface (JNI) Help to optimize Remote Method Invocation (RIM), the instructions call for servlet and JavaServer Performance Pages (JSPS) Custom sample code for JDBC database connection pooling and Java HTTP server