CS 0401 Lecture Notes - Lecture 1: Java Bytecode, Java Class Library, Java Virtual Machine
Document Summary
Programming languages exist to unambiguously describe the act of computation to a computer. Programming languages don"t feel like the languages we speak because they need to be very precise and unambiguous. Hello world example (source code): class hello { public static void main(string[] args){ They wanted to write some codes to control a bunch of different devices. So, they designed a language to be able to talk to very different devices. Language not tied to a particular brand hardware. What is a fake machine? it"s a fake computer that only needs to be written once for every real brand processor. Java became popular because the internet began to become popular in the mid-1990s. Compilation act of translating one language into another (e. g. translating java source code into java bytecode) Jvm is said to be interpreter for bytecode but some people say it"s a second compiler. { (
