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Introduction to Variables and Loops in Programming

Learn about variables as containers, conditional statements, operators, loops, and functions in programming. Understand data types, control flow, and loops in this comprehensive guide.

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Introduction to Variables and Loops in Programming

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  1. Variables as Containers Variables have: Name Type Data

  2. int length; length = 7;

  3. Conditional Statements if(condition) statement; if(length < 7) { statements; statements; }

  4. Operators • < Less than • <= Less than or equal • > Greater than • >= Greater than or equal • == Equal to • != Not equal

  5. Loops • Initialization • Condition • Update • Body

  6. for loop - precondition for(initialization; condition; increment) statement; for(int control = 0; control < max; control++) { statement; statement; }

  7. while loop - precondition • initialization; • while(condition) • { • statements… • Increment condition; • }

  8. do loop - post condition • initialization; • do • { • statements… • Increment condition; • }while(condition);

  9. functions prototype: Looks just like your function header int count(int accumulator); int count(int accumulator) { Statements… }

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