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Composed Method

Composed Method

ธ„ ˜‚ฌ†Œํ†ตด ž˜˜Š” ํ”„กœทธžจ„ ›ํ•˜Š”€? ฉ”†Œ“œ˜ ด„„ €„•Œ ˜„€ ž˜ “œŸฌ‚˜ฒŒ ง“ž.

ฉ”„€ ณด‚ดŠ” ฐ—Š” ‹œ„ด ฆฐ‹ค. ฆ‰ ํ•จˆ˜ ํ˜ธถœ—Š” ˜ค„ํ—ค“œ€ ’ค”ฐฅธ‹ค. ทธŸฌ€กœ ตœณ ˜ †„ ‚ด คฉด ํ•˜‚˜˜ ฉ”†Œ“œ— ชจ“ •Œ ค„„ ˆ˜„ žˆ‹ค. ํ•˜€งŒ? Œ“€Š” ํดฒƒด‹ค.(ธ ฅ‚ญ„, „ตฌกฐ  ํ”„กœทธžจ –‘‚ฐ)

ดˆณดž“ค€ ž‘€ ํฌธฐ˜ งŽ€ ฉ”†Œ“œ ณดณ Š”, ํ”„กœทธžจ˜ „ํ–‰ ƒํ™ฉ„ ž˜ ชจฅธ‹คณ  ํ•  ˆ˜„ žˆ‹ค. ํ•˜€งŒ ฒฝํ—˜ด Œ“ˆ˜ก, ž˜ €–ด„ ด„˜ ฉ”„€Š” ฝ”“œ˜ ํ„„ •Œธฐ ‰ฝฒŒ ํ•ด€‹ค. ฉ”†Œ“œ ด„„ ˜„€ “œŸฌ‚˜ฒŒ ง“Š”ฒƒ€ ํ•˜‚˜˜ ฉ”†Œ“œ ํฌธฐ ž‘ฒŒ ํ•˜Š” €žฅ ํฐ ดœ € œ‹ค. ทธ ฝ”“œ ณดŠ” ‚ฌžŒ“ค€ ํ•˜‚˜ ํ•˜‚˜˜ ž‘€ €„„ ดํ•ดํ•จœกœจ, ” ํฐ €„„ ดํ•ดํ• ˆ˜ žˆฒŒ œ‹ค. ˜ํ•œ ฉ”†Œ“œ ž‘ฒŒ ํ•˜ฉด „ทธ€ ฐœƒํ–ˆ„•Œ„ ธฐ— ตญํ•œ‹œํ‚ฌ ˆ˜€ žˆ‹ค. ญ”€ ฐœ„ ํ•˜ธฐ€ ‰ฌ›Œงˆ ฒƒด‹ค. ก  ƒ†„ ž—ฐŠคŸฝฒŒ ํ• ˆ˜ žˆ‹ค.
‹‹ ˜ ํ”„กœทธžจ„ ํ•˜‚˜˜ ™ํ™”œ ž‘—…„ ˆ˜ํ–‰ํ• ˆ˜ žˆŠ” ฉ”†Œ“œ“คกœ ‚˜ˆ . ชจ“  ฉ”†Œ“œŠ” ฐ™€ ˆ˜€˜ ถ”ƒํ™” œ €ํ•ด• ํ•œ‹ค. ดŠ” ž—ฐŠคŸฝฒŒ —ฌŸฌฐœ˜ ž‘€ ฉ”†Œ“œ งŒ“ค–ด‚ดฒŒ   ฒƒด‹ค.

‹‹ ด €žฅ ค‘š”ํ•˜ฒŒ Composed Method “ธ•ŒŠ”, ‹‹ ด ญ”€ ตฌํ˜„ํ•˜ณ  žˆ„•Œ ƒˆกœšด …ž„„ ฐœฒฌํ–ˆ„•Œด‹ค. ‹‹ ด ‘˜ ดƒ˜ ฉ”„€ ‹คฅธ ฐฒดกœ ณด‚•Œ, ˆ˜‹  ฐฒด—„œŠ” ทธ ฉ”„€“ค„ ํ•ฉ˜Š” Composed Method งŒ“ค ˆ˜ žˆ‹ค. ดŸฌํ•œ Method“ค€ ‹‹ ˜ ‹œŠคํ…œ˜ ‹คฅธ €„—„œ„ œ šฉํ•˜ฒŒ “ฐ ฒƒด‹ค.

~cpp 
class Controller
{
private :
	/* ... */
	void controlInitialize() {/* ... */}
	void controlLoop() {/* ... */}
	void controlTerminate() {/* ... */}
public :
	void controlActivity()
	{
		controlInitialize();
		controlLoop();
		controlTerminate();
	}
};

ฐœธ œกœ, „‹จํ•ดณดด€งŒ •„ ค‘š”ํ•œ ด•ธฐ ƒฐํ•จ. ProgrammingByIntention ˜ ž…žฅ—„œ, ˜ํ•œ 'ฐ™€  ˆฒจ˜ ถ”ƒํ™” œ €ํ•˜'Š” Œ€ชฉ—„œ. (StepwiseRefinement ํ•˜ฉด ž—ฐŠคŸฝฒŒ „ํ–‰จ) --1002

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