Java - It's Fast (potentially)

• Currently, all mainstream implementations of Java are running Java programs interpretively
  • port of the interpreter developed by Sun
  • alternative implementation built from the Java Language and Virtual Machine specifications
• Java byte code is similar to functionality to P-code or U-code
• Several experimental projects translating Java byte codes to either C or native machine code
  • Slower than C or C++, due to mandatory run-time checks
  • For many small Java programs, no advantage of compiling over interpreting