Chapter 02 Summary

For loop  - repeats when you know the number of times to repeat

• Don't put a semi-colon at the end of the for condition
• Remember to create the variable used to count the loop with an int statement somewhere in your program. (either in the for statement or before it)
• You can add to the counter between the brackets as well.
• After the first time through, the for loop does the "statement to run when the loop repeats" first, and then checks whether the condition fails.
• When the condition fails, it goes to the bottom bracket of the loop and continues on
• You can have loops inside loops
• Stopping when equal to a single number is dangerous - go with < or > instead when you can.
• Variables you create inside a loop only last while the loop is running.

Loop approach: (No need to memorize. Just figure out which approach works best for you)

• Write sample output
• bracket and label patterns on top of output
• determine outer and inner
• if inner, use a table to figure out
• work out example in the middle of a series
• flow chart
• pseudo code
• code outer and compile
• code one inner at a time and compile

Structure Summary: (You should know how to create each of these structures)

• Class header
• Final variable (public static final type name) CONSTANT
• Method header
• for heder
• statements
• delcare variables
• assign variable values
• expressions

Theory Summary:

• Naming
  • cap first is class
  • cap all is constant
  • lower first is variable and method
• Types (int, char, boolean, double)
• Variables and expressions
  • When to create
  • What forumlas (start small # in middle of the sequence)
  • How to evaluate expressions
• Flow chart
• Tracing programs
  • debugging
  • manual
• Why to break into methods
  • complexity
  • reusable parts
• Repetition
  • outer loop
  • inner loop
  • locate patterns

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