https://magiclen.org/tag/ocpjp/feed多元化原創文章，內容包羅萬象，有程式語言、網站應用、軟體介紹、硬體介紹、作業系統、旅行遊記、專題採訪、益智問題、文學創作，以及作者們的知識分享和作品分享。zh-TWTue, 21 Apr 2026 10:23:26 +0000hourly81970-01-01T00:00+00:00https://magiclen.org/ocajp-ocpjp 筆者自高中二年級之後就開始在學承電腦上Java課程，因為自己本身有在使用Linux，所以非常了解Java語言跨平台的好處，自從接觸Java程式語言之後就愛上了它，之後還陸續買了許多本Java的書籍。後來拿到了TQC+的Java程式設計專業人員認證，覺得應該要再來拿拿Oracle的原廠認證，好跟國際接軌，便報考了Java 8的Oracle Certified Associate和Oracle Cer...]]>JavaOCAJPOCPJPOraclehttps://magiclen.org/ocajp-ocpjpSat, 16 Jul 2016 20:50:35 +0800Magic Lenhttps://magiclen.org/ocpjptreemap%E7%9A%84%E7%94%A8%E6%B3%95 What is the result? A. {1007 = A, 1002 = C, 1001 = B, 1003 = B} B. {1001 = B, 1002 = C, 1003 = B, 1007 = A} C. {1002 = C, 1003 = B, 1007 = A} D. {1007 = A, 1001 = B, 1003 = B, 1002 = C}]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjptreemap%E7%9A%84%E7%94%A8%E6%B3%95Tue, 24 May 2016 13:40:20 +0800Magic Lenhttps://magiclen.org/ocpjp-how-to-print-rat-cat-lion-tiger Which code fragment should be inserted at line n1 to enable the code to print Rat Cat Lion Tiger? A. Arrays.sort(strArray, CheckClass::checkValue); B. Arrays.sort(strArray, (CheckClass::new)::checkVa...]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjp-how-to-print-rat-cat-lion-tigerTue, 24 May 2016 13:36:03 +0800Magic Lenhttps://magiclen.org/ocpjp-copy-file What is the result? A. A file with the name log.txt is created in the /data directory and the content of the /data/december/log.txt file is copied to it. B. The program executes successfully and does...]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjp-copy-fileTue, 24 May 2016 13:15:45 +0800Magic Lenhttps://magiclen.org/ocpjp-override-throw-exception Which modification enables the code fragment to print Happy Journey!? A. Replace line n1 with public void ride() throws FuelNotAvailException { B. Replace line n1 with protected void ride() throws...]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjp-override-throw-exceptionTue, 24 May 2016 12:50:19 +0800Magic Lenhttps://magiclen.org/ocpjp-path-resolve What is the result? A. /app/sys/log /readme/server/exe B. /app/log/sys /server/exe/readme C. /app/./sys/log /readme D. /app/./sys/log /server/exe/readme]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjp-path-resolveSun, 22 May 2016 12:58:44 +0800Magic Lenhttps://magiclen.org/ocpjp-collection-sort What is the result? A. [A Guide to Java Tour:3.0, Beginning with Java:2.0] B. [Beginning with Java:2.0, A Guide to Java Tour:3.0] C. A compilation error occurs because the Book class does not overrid...]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjp-collection-sortSun, 22 May 2016 12:38:56 +0800Magic Lenhttps://magiclen.org/ocpjp-static-member What is the result? A. 0 B. 2 C. 3 D. 4 E. 5]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjp-static-memberSun, 22 May 2016 12:27:34 +0800Magic Lenhttps://magiclen.org/ocpjp-interface-default-method Which statement is true? A. Moveable can be used as below: Moveable<Integer> animal = n -> System.out.println("Running" + n); animal.run(100); animal.walk(20); B. Moveable can be used as below: Movea...]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjp-interface-default-methodSat, 21 May 2016 22:30:41 +0800Magic Lenhttps://magiclen.org/ocpjp-assertion-2 What is the result of running the code with the -ea option? A. -10 B. 0 C. An AssertionError is thrown. D. A compilation error occurs.]]>題庫解析Java1Z0-809OCPJPhttps://magiclen.org/ocpjp-assertion-2Sat, 21 May 2016 22:23:14 +0800Magic Len