JavaRush /ื‘ืœื•ื’ Java /Random-HE /ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื: ืžืฆื ืžื™ืœื”/ื—ืœืง ืžืžื™ืœื”
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ืจึธืžึธื”

ื‘ื™ื˜ื•ื™ื™ื ืจื’ื•ืœืจื™ื™ื: ืžืฆื ืžื™ืœื”/ื—ืœืง ืžืžื™ืœื”

ืคื•ืจืกื ื‘ืงื‘ื•ืฆื”
ืื ืืชื” ืฆืจื™ืš ืœืžืฆื•ื ืžื™ืœื” ืื• ืžื—ืจื•ื–ืช ืžืฉื ื”, ืคืชืจื•ืŸ ื˜ื•ื‘ ื”ื•ื ืœื”ืฉืชืžืฉ ื‘ืื•ืคืจื˜ื•ืจ ื”ืคืงื“ ืžืชื•ืš ืขืจื›ืช ื”ื›ืœื™ื ืฉืœ ื”ื‘ื™ื˜ื•ื™ ื”ืจื’ื•ืœืจื™ . ื–ื” ื”ื›ืจื—ื™ ื›ืืฉืจ ืืชื” ืฆืจื™ืš ืœืžืฆื•ื ืžืฉื”ื• ืฉืื—ืจื™ ืžืฉื”ื• ืื—ืจ.
ื“ื•ื’ืžื” ืคืฉื•ื˜ื”
String str = "ะฟั€ะพะณั€ะฐะผะผะธั€ัƒะตะผ"; Pattern p = Pattern.compile(".*ะฟั€ะพะณั€ะฐะผะผ(?=ะธั€ัƒะตะผ).*"); Matcher m = p.matcher(str); if(m.matches()){ System.out.println("ะะฐัˆะตะป!"); }else{ System.out.println("ะะต ะฝะฐัˆะตะป!"); }
1. ื—ืคืฉ ืžืœืคื ื™ื
ื‘ื“ื•ื’ืžื” ืœืžืขืœื”, ืื ืืชื” ืฆืจื™ืš ืœืžืฆื•ื "ืชื›ื ื•ืช", ืื‘ืœ ืœื ืฆืจื™ืš ืœื—ืคืฉ "ืชื›ื ื•ืช", ืขืœื™ืš ืœื”ืฉืชืžืฉ ื‘ืชื‘ื ื™ืช ื”ื‘ืื”: .*ะฟั€ะพะณั€ะฐะผะผ(?=ะธั€ัƒะตะผ).* ?= - ื—ืคืฉ ืœืคื ื™ ื ื•ื›ื—ื•ืช ืฉืœ ืžื™ืœื”/ื—ืœืง ืžืžื™ืœื”; ?! โ€“ ื—ืคืฉ ืžืœืคื ื™ื ืืช ื”ื™ืขื“ืจ ืžื™ืœื”/ื—ืœืง ืžืžื™ืœื”.
2. ื—ืคืฉ ืžืื—ื•ืจ
ื—ื™ืคื•ืฉ ืžืื—ื•ืจ ืขื•ื‘ื“ ื‘ืฆื•ืจื” ื“ื•ืžื”. ืขืœื™ืš ืœื”ืฉืชืžืฉ ื‘-?<= ื›ื“ื™ ืœื—ืคืฉ ืžื™ืœื”/ื—ืœืง ืžืžื™ืœื” ืžืื—ื•ืจื™ื” ื•-? .*(?<=programs)we.* ื”ืžื™ืœื” "ืชื•ื›ื ื™ืช" ืชื•ืืžืช ืืช ื”ื“ืคื•ืก ื”ื–ื”, ืื‘ืœ ื”ืžื™ืœื” "ืคื•ืœื™ืฉ" ืœื.
ื”ืขืจื•ืช
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