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    Creating Java Programs

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    Khent Apduhan
    The document discusses key concepts in Java programming including: 1) The differences between procedural and object-oriented programming concepts, and features of the Java programming language like being object-oriented, platform independent, and portable. 2) Popular programming methodologies like structured programming which divides problems into subproblems, and object-oriented programming which identifies interacting objects. 3) Steps for creating Java programs including compiling code to correct syntax errors, running programs to fix logic errors, and adding comments.

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    Creating Java Programs

    Uploaded by

    Khent Apduhan
    45 views27 pages
    The document discusses key concepts in Java programming including: 1) The differences between procedural and object-oriented programming concepts, and features of the Java programming language like being object-oriented, platform independent, and portable. 2) Popular programming methodologies like structured programming which divides problems into subproblems, and object-oriented programming which identifies interacting objects. 3) Steps for creating Java programs including compiling code to correct syntax errors, running programs to fix logic errors, and adding comments.

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    Creating-Java-Programs

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    The document discusses key concepts in Java programming including: 1) The differences between procedural and object-oriented programming concepts, and features of the Java programming language like being object-oriented, platform independent, and portable. 2) Popular programming methodologies like structured programming which divides problems into subproblems, and object-oriented programming which identifies interacting objects. 3) Steps for creating Java programs including compiling code to correct syntax errors, running programs to fix logic errors, and adding comments.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    45 views27 pages

    Creating Java Programs

    Uploaded by

    Khent Apduhan
    The document discusses key concepts in Java programming including: 1) The differences between procedural and object-oriented programming concepts, and features of the Java programming language like being object-oriented, platform independent, and portable. 2) Popular programming methodologies like structured programming which divides problems into subproblems, and object-oriented programming which identifies interacting objects. 3) Steps for creating Java programs including compiling code to correct syntax errors, running programs to fix logic errors, and adding comments.

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    Creating Java Programs

    Topics covered

    • Programming Terminology
    • Comparing Procedural and Object-Oriented
    Programming Concept
    • Features of Java Programming Language
    • Programming Methodologies
    Topics covered

    • Compiling Java Class and Correcting Syntax


    Error
    • Running Java Application and Correcting Logic
    Errors
    • Adding Comments to a Java Class
    Programming Terminology
    Assembly language:
    • developed to make the programmer’s job
    easier
    • instruction is an easy-to-remember form called
    a mnemonic
    Assembler:
    • A program that translates a program written in
    assembly language into an equivalent program
    in machine language.
    Examples of Instructions in Assembly Language and
    Machine Language
    High-level programming language:
    • close to spoken languages.
    • instructions are much easier to understand
    and is self-explanatory
    Compiler:
    • A program that translates a program written in
    a high-level language into the equivalent
    machine language.
    Source program:
    • A program written in a high-level language
    Text editor:
    • Used to create a program following the rules,
    or syntax, of the language
    IDE:
    • contains many programs that are useful in
    creating your program.
    Interpreter:
    • A program that reads and translates each
    bytecode instruction into your computer’s
    machine language, and then executes it.
    Algorithm:
    • A step-by-step problem-solving process in
    which a solution is arrived at in a finite amount
    of time.
    Computer program:
    • is a sequence of statements intended to
    accomplish a task.
    Programming:
    • is a process of planning and creating a
    program.
    Programming language:
    • A set of rules, symbols, and special words used
    to construct programs.
    Comparing Procedural and
    Object-Oriented Programming
    Concept
    Procedural programming:
    • program is divided into small parts called functions
    • follows top down approach.
    • no access specifier in procedural programming.
    • function is more important than data.
    • Examples: C, FORTRAN, Pascal, Basic etc.
    Object Oriented Programming:
    • program is divided into small parts called objects.
    • follows bottom up approach.
    • have access specifiers like private, public, protected etc.
    • data is more important than function.
    • Examples: C++, Java, Python, C# etc.
    Features of Java Programming
    Language
    • Object Oriented
    • Platform Independent
    • Simple
    • Secure
    • Architecture-neutral
    • Portable
    • Robust
    • Multithreaded
    • Interpreted
    • High Performance
    • Distributed
    • Dynamic
    Programming Methodologies
    Two popular approaches to programming design are the
    structured approach and the object-oriented approach.

    Structured Programming:
    • Dividing a problem into smaller subproblems
    • Each subproblem is then analyzed, and a solution for
    the subproblem is obtained.
    • The solutions to all the subproblems are then
    combined to solve the overall problem.
    • The structured design approach is also known as top-
    down design, bottom-up design, stepwise refinement,
    and modular programming.
    Object-Oriented Programming
    • Object-oriented design (OOD) is a widely used
    programming methodology.
    • In OOD, the first step in the problem-solving process is to
    identify the components called objects, which form the
    basis of the solution, and to determine how these objects
    interact with one another.
    Compiling Java Class and
    Correcting Syntax Error
    Running Java Application and
    Correcting Logic Errors
    Adding Comments to a Java
    Class
    Single-line comments:
    • begin with // and can be placed anywhere in the line.
    Everythingencountered in that line after // is ignored by
    the compiler.
    Multiple-line comments:
    • are enclosed between /* and */. The compiler ignores
    anything that appears between /* and */.

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