When you compare the performance of a Java program against that of a C/C++ program, you will find that the current generation of Java programs can be as much as twenty times slower than their C/C++ counterparts. This performance loss is mostly due to the FACT that the browser musf interpret the Java bytecode and convert it into the computer's native code (such as a Pentium or Motorola-specific code) before the code can run. In C/C++, the code is in the processor's native format to begin with, so this time-consuming translation step is not required. Remember, however, that Java's generic bytecode allows the same Java code to run on multiple platforms.
The Java designers are working on various SOLUTIONS to speed up Java. In the MEANTIME, you can use the -O compiler switch with javac, which may increase the applet's performance. The -0 switch directs javac to optimize its bytecode by "inlining" static, final and private methods. For now, don't worry what "inlining" such code means other than it may improve your applet performance. Unfortunately, when you use inlining, you may increase the size of your bytecode FILE, which will increase the applet's download time. The following Javac command illustrates how you use the -0 switch:

When you compare the performance of a Java program against that of a C/C++ program, you will find that the current generation of Java programs can be as much as twenty times slower than their C/C++ counterparts. This performance loss is mostly due to the fact that the browser musf interpret the Java bytecode and convert it into the computer's native code (such as a Pentium or Motorola-specific code) before the code can run. In C/C++, the code is in the processor's native format to begin with, so this time-consuming translation step is not required. Remember, however, that Java's generic bytecode allows the same Java code to run on multiple platforms.
The Java designers are working on various solutions to speed up Java. In the meantime, you can use the -O compiler switch with javac, which may increase the applet's performance. The -0 switch directs javac to optimize its bytecode by "inlining" static, final and private methods. For now, don't worry what "inlining" such code means other than it may improve your applet performance. Unfortunately, when you use inlining, you may increase the size of your bytecode file, which will increase the applet's download time. The following Javac command illustrates how you use the -0 switch: