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Related Flashcards
Cards In This Set
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A program
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A program is a set of instructions that a computer follows in order to perform a task.
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Algorithm
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A set of well defined steps to completing a task.
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Why were programming languages invented?
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To ease the task of programming.
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What is programming language?
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A vocabulary and set of grammatical rules for instructing a computer to perform specific tasks.
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Two kinds of programming language...
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• Low level language
• High level language
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What are low level programming languages?
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 They are very close to machine languages, hard to read and understand. • Ex: Assembly language |
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What are high level programming languages?
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 They are close to human language, easy to understand and implement algorithm. Ex: Java, C, C++ If a > b print(“a is greater than b”) |
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Common programming language elements in Java
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• Key words
• Operators
• Punctuation
• Programmer defined identifiers
• Strict syntactic rules.
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Who created Java
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Sun Microsystems
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What is Java?
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Java is a high level programming language that derives much of its syntax from C and C++ but has a simpler object model.
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Primary goal (1) in the creation of the Java language:
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1. Use of object-oriented programming methodology.
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Two types of Java programs?
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• Applications
• Applets
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Applications
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• Stand-alone programs that run without the aid of a web browser.
• Relaxed security model since the user runs the program locally.
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Applets
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• Small applications, require the use of a Java enabled web browser to run.
• Enhanced security model, applet runs itself from a webpage.
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Source code
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Programming statements written by the programmer
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