Programming Languages Essay -- essays research papers

Programming LanguagesA programing language is a posit of English-like instructions that includes a set of rules for putting the instructions together to perform commands. A translator changes the English-like commands into numeric code that the computer can understand. The nigh common type of translator is a compiler. The compiler is program that reads English-like commands in a file and than creates another file containing computer readable numeric code or commands. I will be talking just about some of the major functions and uses sixer high-level programming languages.Java was certain by Sun MicroSystems and released in 1995. Java is based on C and C++ and incorporates many features object-oriented languages. It is a compiled language, but its code proceeds is interpreted. This makes Java ideal for cross-development. The downside to its interpreted code is speed. Javas object-oriented is fundamental, and all(prenominal) code and data in a Java program cost within the obj ect-oriented class. Javas exception handiling with try, catch, and throw statements fork over the root word for writing reliable code that responds to all possible error conditions. other utility of Java is a String class that does away with null-terminated, length byte and other types of strings. It is also multithreaded which a class can easily provide code that runs concurrently with other programing. Another advantage is the lack of a pointer-type data and memory management which tends to be a very bug-pr i argona. fund is organized by Javas virtual machine slobber collector. Java provides a rich class library in beavery bug-prone argona. repositing is organized by Javas virtual machine drivel collector. Java provides a rich class library in the forms of packages import into modules. Since Java is interpreted locally on the users system, a security manager can completely control disk access, window creation, and memory management.C was developed by Dennis Ritchie at Bel l Labortories in 1972. C was originally designed as symbolic code that declare programming prasctices used at the time. In 1978 C blossomed into what was to become the most(prenominal) popular programming language ever. C offers programmers three advantages The first is world-wide pourpose programming which allows you to write games, business software, utilities, mathematical models, wordprocessors, spredsheets,... ...equence. Cobol has a certain negligible amount of code that is required for all programs, this is usually called a vitrine program.Delphi is a Rapid Application progarm which now progrrammers can use tools which are more intuitive and visual. Delphi uses Object Pascal as its foundation language, which has been one of the fastest compilers in the business. Also object-based extensions has been added to the language to support good programming practices and efficent code. Delphi is capeble of using OCX controls, which is a 32-bit OLE-based custom control. Delphi a lso allows you to create OLE mechanization servers and clients. These automation objects give you the flexibility of creating programs that perform tasks in the backround and put the results back to your application. Anoter advantage for Delphi is the ability to write multi-threaaded applications. In a multi-tasking enviorment thi is important, as your applications become more comple, it is necessary to execute your applications in seprate pieces, which are called threads.In conclusion, the following was an overview of six high level languages. Many are similar, but there are very distinct features and advantages to each language