[問題] Java的編譯器真的是用Java寫的嗎？
看板CSSE (電腦科學及軟體工程)作者as1986 (veni, vidi, vici)時間19年前 (2005/03/17 23:32)推噓7(7推 0噓 15→)留言22則, 4人參與討論串1/1
聽說現在的程式語言（如Java）的compiler都是自己compile自己
（嚴格說是先用別的語言做出該語言的compiler出來，再拿他去compile要compile的
compiler，最後再用被compiled的compiler再去compile一次自己）
好像繞口令XD
可是Java是用bytecode的型式散佈可執行檔啊
所以compiled的compiler也應該是bytecode
這樣就需要一個額外的Java VM了
那為什麼我們不管在哪邊只要打"javac 要編譯的source" 就可以了呢？
好像看不到虛擬機器的存在
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◆ From: 140.112.249.234
※ 編輯: as1986 來自: 140.112.249.234 (03/17 23:41)
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