| ." Copyright (c) 1994, 2011, Oracle and/or its affiliates. All rights reserved. |
| ." DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| ." |
| ." This code is free software; you can redistribute it and/or modify it |
| ." under the terms of the GNU General Public License version 2 only, as |
| ." published by the Free Software Foundation. |
| ." |
| ." This code is distributed in the hope that it will be useful, but WITHOUT |
| ." ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| ." FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| ." version 2 for more details (a copy is included in the LICENSE file that |
| ." accompanied this code). |
| ." |
| ." You should have received a copy of the GNU General Public License version |
| ." 2 along with this work; if not, write to the Free Software Foundation, |
| ." Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| ." |
| ." Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| ." or visit www.oracle.com if you need additional information or have any |
| ." questions. |
| ." |
| .TH javac 1 "14 Apr 2011" |
| |
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| .TP 3 |
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| .TP 3 |
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| .TP 3 |
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| .TP 3 |
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| .TP 3 |
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| .TP 3 |
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| .TP 3 |
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| .TP 3 |
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| .TP 3 |
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| .LP |
| .LP |
| \f3\-Xlint:\fP\f2name\fP ¥ª¥×¥·¥ç¥ó¤ò»È¤Ã¤Æ·Ù¹ð \f2name\fP ¤ò͸ú¤Ë¤·¤Þ¤¹¡£¤¿¤À¤·¡¢\f2name\fP ¤Ï¼¡¤Î·Ù¹ð̾¤Î¤¤¤º¤ì¤«¤Ë¤Ê¤ê¤Þ¤¹¡£Æ±Íͤˡ¢\f3\-Xlint:\-\fP\f2name\fP ¥ª¥×¥·¥ç¥ó¤ò»È¤Ã¤Æ·Ù¹ð \f2name\fP ¤ò̵¸ú¤Ë¤Ç¤¤Þ¤¹¡£ |
| .LP |
| .RS 3 |
| .TP 3 |
| cast |
| ÉÔÍפǾéĹ¤Ê¥¥ã¥¹¥È¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| String s = (String)"Hello!" |
| .fl |
| \fP |
| .fi |
| .TP 3 |
| classfile |
| ¥¯¥é¥¹¥Õ¥¡¥¤¥ë¤ÎÆâÍƤ˴ØÏ¢¤·¤¿ÌäÂê¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£ |
| .TP 3 |
| deprecation |
| Èó¿ä¾©¹àÌܤλÈÍѤˤĤ¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| java.util.Date myDate = new java.util.Date(); |
| .fl |
| int currentDay = myDate.getDay(); |
| .fl |
| \fP |
| .fi |
| .LP |
| ¥á¥½¥Ã¥É \f2java.util.Date.getDay\fP ¤Ï JDK 1.1 °Ê¹ß¤Ï¿ä¾©¤µ¤ì¤Æ¤¤¤Þ¤»¤ó¡£ |
| .TP 3 |
| dep\-ann |
| \f2@deprecated\fP Javadoc ¥³¥á¥ó¥È¤Ç¥É¥¥å¥á¥ó¥È²½¤µ¤ì¤Æ¤¤¤ë¤¬¡¢ \f2@Deprecated\fP Ãí¼á¤¬ÉÕ¤¤¤Æ¤¤¤Ê¤¤¹àÌܤˤĤ¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| /** |
| .fl |
| * @deprecated As of Java SE 7, replaced by {@link #newMethod()} |
| .fl |
| */ |
| .fl |
| |
| .fl |
| public static void deprecatedMethood() { } |
| .fl |
| |
| .fl |
| public static void newMethod() { } |
| .fl |
| \fP |
| .fi |
| .TP 3 |
| divzero |
| °ìÄê¤ÎÀ°¿ô 0 ¤Ç½ü»»¤µ¤ì¤ë¤³¤È¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| int divideByZero = 42 / 0; |
| .fl |
| \fP |
| .fi |
| .TP 3 |
| empty |
| \f2if\fP ʸ°Ê¹ß¤¬¶õ¤Îʸ¤Ç¤¢¤ë¤³¤È¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| class E { |
| .fl |
| void m() { |
| .fl |
| if (true) ; |
| .fl |
| } |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .TP 3 |
| fallthrough |
| fall\-through ¥±¡¼¥¹¤Î \f2switch\fP ¥Ö¥í¥Ã¥¯¤ò¥Á¥§¥Ã¥¯¤·¡¢¸¡½Ð¤µ¤ì¤¿¤â¤Î¤ËÂФ·¤Æ·Ù¹ð¥á¥Ã¥»¡¼¥¸¤òɽ¼¨¤·¤Þ¤¹¡£Fall\-through ¥±¡¼¥¹¤Ï¡¢\f2switch\fP ¥Ö¥í¥Ã¥¯Æâ¤ÎºÇ¸å¤Î¥±¡¼¥¹¤ò½ü¤¯¥±¡¼¥¹¤Ç¤¹¡£¤³¤Î¥³¡¼¥É¤Ë¤Ï \f2break\fP ʸ¤Ï´Þ¤Þ¤ì¤Þ¤»¤ó¡£¥³¡¼¥É¤Î¼Â¹Ô¤ò¤½¤Î¥±¡¼¥¹¤«¤é¼¡¤Î¥±¡¼¥¹¤Ø°ÜÆ°¤·¤Þ¤¹¡£¤¿¤È¤¨¤Ð¡¢¤³¤Î \f2switch\fP ¥Ö¥í¥Ã¥¯Æâ¤Î \f2case 1\fP ¥é¥Ù¥ë¤Ë³¤¯¥³¡¼¥É¤Ï¡¢\f2break\fP ʸ¤Ç½ª¤ï¤Ã¤Æ¤¤¤Þ¤»¤ó¡£ |
| .nf |
| \f3 |
| .fl |
| switch (x) { |
| .fl |
| case 1: |
| .fl |
| System.out.println("1"); |
| .fl |
| // No break statement here. |
| .fl |
| case 2: |
| .fl |
| System.out.println("2"); |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .LP |
| ¤³¤Î¥³¡¼¥É¤Î¥³¥ó¥Ñ¥¤¥ë»þ¤Ë \f2\-Xlint:fallthrough\fP ¥Õ¥é¥°¤¬»ÈÍѤµ¤ì¤Æ¤¤¤¿¾ì¹ç¡¢¥³¥ó¥Ñ¥¤¥é¤Ï Åö³º¥±¡¼¥¹¤Î¹ÔÈÖ¹æ¤È¤È¤â¤Ë¡¢fall\-through ¥±¡¼¥¹¤Î²ÄǽÀ¤¬¤¢¤ë¤³¤È¤ò¼¨¤¹·Ù¹ð¤òȯ¹Ô¤·¤Þ¤¹¡£ |
| .TP 3 |
| finally |
| Àµ¾ï¤Ë´°Î»¤Ç¤¤Ê¤¤ \f2finally\fP Àá¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| public static int m() { |
| .fl |
| try { |
| .fl |
| throw new NullPointerException(); |
| .fl |
| } catch (NullPointerException e) { |
| .fl |
| System.err.println("Caught NullPointerException."); |
| .fl |
| return 1; |
| .fl |
| } finally { |
| .fl |
| return 0; |
| .fl |
| } |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .LP |
| ¤³¤ÎÎã¤Ç¤Ï¡¢¥³¥ó¥Ñ¥¤¥é¤Ï \f2finally\fP ¥Ö¥í¥Ã¥¯¤Ë´Ø¤¹¤ë·Ù¹ð¤òÀ¸À®¤·¤Þ¤¹¡£¤³¤Î¥á¥½¥Ã¥É¤¬¸Æ¤Ó½Ð¤µ¤ì¤ë¤È¡¢ÃÍ 1 ¤Ç¤Ï¤Ê¤¯ \f20\fP ¤¬ \f2ÊÖ¤µ¤ì¤Þ¤¹\fP¡£ \f2finally\fP ¥Ö¥í¥Ã¥¯¤Ï¡¢ \f2try\fP ¥Ö¥í¥Ã¥¯¤¬½ªÎ»¤¹¤ë¤Èɬ¤º¼Â¹Ô¤µ¤ì¤Þ¤¹¡£¤³¤ÎÎã¤Ç¤Ï¡¢À©¸æ¤¬ \f2catch\fP ¤Ë°Ü¤µ¤ì¤¿¾ì¹ç¡¢¥á¥½¥Ã¥É¤Ï½ªÎ»¤·¤Þ¤¹¡£¤¿¤À¤·¡¢ \f2finally\fP ¥Ö¥í¥Ã¥¯¤Ï¼Â¹Ô¤µ¤ì¤ëɬÍפ¬¤¢¤ë¤¿¤á¡¢À©¸æ¤¬¤¹¤Ç¤Ë¤³¤Î¥á¥½¥Ã¥É¤Î³°Éô¤Ë°Ü¤µ¤ì¤Æ¤¤¤Æ¤â¡¢¤³¤Î¥Ö¥í¥Ã¥¯¤Ï¼Â¹Ô¤µ¤ì¤Þ¤¹¡£ |
| .TP 3 |
| options |
| ¥³¥Þ¥ó¥É¹Ô¥ª¥×¥·¥ç¥ó¤Î»ÈÍѤ˴ؤ¹¤ëÌäÂê¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¤³¤Î¼ï¤Î·Ù¹ð¤ÎÎã¤Ë¤Ä¤¤¤Æ¤Ï¡¢¡Ö¥¯¥í¥¹¥³¥ó¥Ñ¥¤¥ë¤ÎÎã¡×¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤¡£ |
| .TP 3 |
| overrides |
| ¥á¥½¥Ã¥É¤Î¥ª¡¼¥Ð¡¼¥é¥¤¥É¤Ë´Ø¤¹¤ëÌäÂê¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¤¿¤È¤¨¤Ð¡¢¼¡¤Î 2 ¤Ä¤Î¥¯¥é¥¹¤¬¤¢¤ë¤È¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| public class ClassWithVarargsMethod { |
| .fl |
| void varargsMethod(String... s) { } |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .nf |
| \f3 |
| .fl |
| public class ClassWithOverridingMethod extends ClassWithVarargsMethod { |
| .fl |
| @Override |
| .fl |
| void varargsMethod(String[] s) { } |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .LP |
| ¥³¥ó¥Ñ¥¤¥é¤Ï¼¡¤Î¤è¤¦¤Ê·Ù¹ð¤òÀ¸À®¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| warning: [override] varargsMethod(String[]) in ClassWithOverridingMethod overrides varargsMethod(String...) in ClassWithVarargsMethod; overriding method is missing '...' |
| .fl |
| \fP |
| .fi |
| .LP |
| ¥³¥ó¥Ñ¥¤¥é¤Ï¡¢varargs ¥á¥½¥Ã¥É¤ò¸¡½Ð¤¹¤ë¤È¡¢varargs ¤Î²¾¥Ñ¥é¥á¡¼¥¿¤òÇÛÎó¤ËÊÑ´¹¤·¤Þ¤¹¡£¥á¥½¥Ã¥É \f2ClassWithVarargsMethod.varargsMethod\fP ¤Ç¤Ï¡¢¥³¥ó¥Ñ¥¤¥é¤Ï varargs ¤Î²¾¥Ñ¥é¥á¡¼¥¿ \f2String... s\fP ¤ò²¾¥Ñ¥é¥á¡¼¥¿ \f2String[] s\fP ¤ËÊÑ´¹¤·¤Þ¤¹¡£String[] s ¤Ï¡¢¥á¥½¥Ã¥É \f2ClassWithOverridingMethod.varargsMethod\fP ¤Î²¾¥Ñ¥é¥á¡¼¥¿¤ËÂбþ¤¹¤ëÇÛÎó¤Ç¤¹¡£¤½¤Î·ë²Ì¡¢¤³¤ÎÎã¤Ç¤Ï¥³¥ó¥Ñ¥¤¥ë¤¬¹Ô¤ï¤ì¤Þ¤¹¡£ |
| .TP 3 |
| path |
| ¥³¥Þ¥ó¥É¹Ô¤Ç¤Î̵¸ú¤Ê¥Ñ¥¹Í×ÁǤȸºß¤·¤Ê¤¤¥Ñ¥¹¥Ç¥£¥ì¥¯¥È¥ê¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹ (¥¯¥é¥¹¥Ñ¥¹¡¢¥½¡¼¥¹¥Ñ¥¹¤Ê¤É¤Î¥Ñ¥¹´ØÏ¢)¡£¤³¤Î¤è¤¦¤Ê·Ù¹ð¤ò \f2@SuppressWarnings\fP Ãí¼á¤ÇÍÞÀ©¤¹¤ë¤³¤È¤Ï¤Ç¤¤Þ¤»¤ó¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| javac \-Xlint:path \-classpath /nonexistentpath Example.java |
| .fl |
| \fP |
| .fi |
| .TP 3 |
| processing |
| Ãí¼á½èÍý¤Ë´Ø¤¹¤ëÌäÂê¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¥³¥ó¥Ñ¥¤¥é¤¬¤³¤Î·Ù¹ð¤òÀ¸À®¤¹¤ë¤Î¤Ï¡¢Ãí¼á¤ò´Þ¤à¥¯¥é¥¹¤¬¤¢¤ë¤È¤¤Ë¡¢»ÈÍѤ·¤Æ¤¤¤ëÃí¼á¥×¥í¥»¥Ã¥µ¤Ç¤½¤Î·¿¤ÎÎã³°¤ò½èÍý¤Ç¤¤Ê¤¤¾ì¹ç¤Ç¤¹¡£Ã±½ã¤ÊÃí¼á¥×¥í¥»¥Ã¥µ¤ÎÎã¤ò¼¡¤Ë¼¨¤·¤Þ¤¹¡£ |
| .LP |
| \f3¥½¡¼¥¹¥Õ¥¡¥¤¥ë \fP\f4AnnoProc.java\fP: |
| .nf |
| \f3 |
| .fl |
| import java.util.*; |
| .fl |
| import javax.annotation.processing.*; |
| .fl |
| import javax.lang.model.*; |
| .fl |
| import javax.lang.model.element.*; |
| .fl |
| |
| .fl |
| @SupportedAnnotationTypes("NotAnno") |
| .fl |
| public class AnnoProc extends AbstractProcessor { |
| .fl |
| public boolean process(Set<? extends TypeElement> elems, RoundEnvironment renv) { |
| .fl |
| return true; |
| .fl |
| } |
| .fl |
| |
| .fl |
| public SourceVersion getSupportedSourceVersion() { |
| .fl |
| return SourceVersion.latest(); |
| .fl |
| } |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .LP |
| \f3¥½¡¼¥¹¥Õ¥¡¥¤¥ë \fP\f4AnnosWithoutProcessors.java\fP\f3:\fP |
| .nf |
| \f3 |
| .fl |
| @interface Anno { } |
| .fl |
| |
| .fl |
| @Anno |
| .fl |
| class AnnosWithoutProcessors { } |
| .fl |
| \fP |
| .fi |
| .LP |
| ¼¡¤Î¥³¥Þ¥ó¥É¤Ï¡¢Ãí¼á¥×¥í¥»¥Ã¥µ \f2AnnoProc\fP ¤ò¥³¥ó¥Ñ¥¤¥ë¤·¡¢¤³¤ÎÃí¼á¥×¥í¥»¥Ã¥µ¤ò¥½¡¼¥¹¥Õ¥¡¥¤¥ë \f2AnnosWithoutProcessors.java\fP ¤ËÂФ·¤Æ¼Â¹Ô¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| % javac AnnoProc.java |
| .fl |
| % javac \-cp . \-Xlint:processing \-processor AnnoProc \-proc:only AnnosWithoutProcessors.java |
| .fl |
| \fP |
| .fi |
| .LP |
| ¥³¥ó¥Ñ¥¤¥é¤¬¥½¡¼¥¹¥Õ¥¡¥¤¥ë \f2AnnosWithoutProcessors.java\fP ¤ËÂФ·¤ÆÃí¼á¥×¥í¥»¥Ã¥µ¤ò¼Â¹Ô¤¹¤ë¤È¡¢¼¡¤Î·Ù¹ð¤¬À¸À®¤µ¤ì¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| warning: [processing] No processor claimed any of these annotations: Anno |
| .fl |
| \fP |
| .fi |
| .LP |
| ¤³¤ÎÌäÂê¤ò²ò·è¤¹¤ë¤Ë¤Ï¡¢¥¯¥é¥¹ \f2AnnosWithoutProcessors\fP ¤ÇÄêµÁ¤ª¤è¤Ó»ÈÍѤµ¤ì¤ëÃí¼á¤Î̾Á°¤ò \f2Anno\fP ¤«¤é \f2NotAnno\fP ¤ËÊѹ¹¤·¤Þ¤¹¡£ |
| .TP 3 |
| rawtypes |
| raw ·¿¤ËÂФ¹¤ë̤¸¡ººÁàºî¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£Æäˤ³¤Î¥ª¥×¥·¥ç¥ó¤Ï¡¢·¿°ú¿ô¤ò»ý¤¿¤Ê¤¤¥Ñ¥é¥á¡¼¥¿²½¤µ¤ì¤¿·¿¤ò»ÈÍѤ¹¤ë¥æ¡¼¥¶¡¼¤ËÂФ·¤Æ·Ù¹ð¤·¤Þ¤¹¡£¼¡¤Îʸ¤Ç¤Ï¡¢ \f2rawtypes\fP ·Ù¹ð¤¬À¸À®¤µ¤ì¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| void countElements(List l) { ... } |
| .fl |
| \fP |
| .fi |
| .LP |
| ¼¡¤Îʸ¤Ç¤Ï¡¢ \f2rawtypes\fP ·Ù¹ð¤ÏÀ¸À®¤µ¤ì¤Þ¤»¤ó¡£ |
| .nf |
| \f3 |
| .fl |
| void countElements(List<?> l) { ... } |
| .fl |
| \fP |
| .fi |
| .LP |
| \f2List\fP ¤Ï raw ·¿¤Ç¤¹¡£¤¿¤À¤·¡¢ \f2List<?>\fP ¤Ï¥¢¥ó¥Ð¥¦¥ó¥É·Á¼°¤Î¥ï¥¤¥ë¥É¥«¡¼¥É¤Î¥Ñ¥é¥á¡¼¥¿²½¤µ¤ì¤¿·¿¤Ç¤¹¡£ \f2List\fP ¤Ï¥Ñ¥é¥á¡¼¥¿²½¤µ¤ì¤¿¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Ê¤Î¤Ç¡¢É¬¤º¤½¤Î·¿°ú¿ô¤ò»ØÄꤹ¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£¤³¤ÎÎã¤Ç¤Ï¡¢ \f2List\fP ¤Î²¾°ú¿ô¤Ï¥¢¥ó¥Ð¥¦¥ó¥É·Á¼°¤Î¥ï¥¤¥ë¥É¥«¡¼¥É (\f2?\fP) ¤ò»È¤Ã¤Æ¤½¤Î²¾·¿¥Ñ¥é¥á¡¼¥¿¤È¤·¤Æ»ØÄꤵ¤ì¤Þ¤¹¡£¤Ä¤Þ¤ê¡¢ \f2countElements\fP ¥á¥½¥Ã¥É¤Ï \f2List\fP ¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Î¤É¤Î¥¤¥ó¥¹¥¿¥ó¥¹²½¤â¼õ¤±ÉÕ¤±¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£ |
| .TP 3 |
| serial |
| ľÎó²½²Äǽ¥¯¥é¥¹¤Ë \f2serialVersionUID\fP ÄêµÁ¤¬¤Ê¤¤¤³¤È¤ò·Ù¹ð¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| public class PersistentTime implements Serializable |
| .fl |
| { |
| .fl |
| private Date time; |
| .fl |
| |
| .fl |
| public PersistentTime() { |
| .fl |
| time = Calendar.getInstance().getTime(); |
| .fl |
| } |
| .fl |
| |
| .fl |
| public Date getTime() { |
| .fl |
| return time; |
| .fl |
| } |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .LP |
| ¥³¥ó¥Ñ¥¤¥é¤Ï¼¡¤Î·Ù¹ð¤òÀ¸À®¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| warning: [serial] serializable class PersistentTime has no definition of serialVersionUID |
| .fl |
| \fP |
| .fi |
| .LP |
| ľÎó²½²Äǽ¥¯¥é¥¹¤¬ \f2serialVersionUID\fP ¤È¤¤¤¦Ì¾Á°¤Î¥Õ¥£¡¼¥ë¥É¤òÌÀ¼¨Åª¤ËÀë¸À¤·¤Ê¤¤¾ì¹ç¡¢Ä¾Îó²½¥é¥ó¥¿¥¤¥à¤Ï¡ÖJava ¥ª¥Ö¥¸¥§¥¯¥ÈľÎó²½»ÅÍ͡פÇÀâÌÀ¤µ¤ì¤Æ¤¤¤ë¤è¤¦¤Ë¡¢¥¯¥é¥¹¤Î¤µ¤Þ¤¶¤Þ¤Ê¦Ì̤˴ð¤Å¤¤¤Æ¡¢¥¯¥é¥¹¤Î \f2serialVersionUID\fP ¤Î¥Ç¥Õ¥©¥ë¥ÈÃͤò·×»»¤·¤Þ¤¹¡£¤¿¤À¤·¡¢¤¹¤Ù¤Æ¤ÎľÎó²½²Äǽ¥¯¥é¥¹¤¬ \f2serialVersionUID\fP ÃͤòÌÀ¼¨Åª¤ËÀë¸À¤¹¤ë¤³¤È¤ò¶¯¤¯¤ª´«¤á¤·¤Þ¤¹¡£¤³¤ì¤Ï¡¢ \f2serialVersionUID\fP Ãͤò·×»»¤¹¤ë¥Ç¥Õ¥©¥ë¥È¤Î¥×¥í¥»¥¹¤¬¡¢¥³¥ó¥Ñ¥¤¥é¤Î¼ÂÁõ¤Ë¤è¤Ã¤Æ°Û¤Ê¤ë²ÄǽÀ¤Î¤¢¤ë¥¯¥é¥¹¤Î¾ÜºÙ¤Ë¤¤ï¤á¤Æ±Æ¶Á¤ò¼õ¤±¤ä¤¹¤¯¡¢Ä¾Îó²½Éü¸µÃæ¤Ëͽ´ü¤·¤Ê¤¤ \f2InvalidClassExceptions\fP ¤¬È¯À¸¤¹¤ë²ÄǽÀ¤¬¤¢¤ë¤¿¤á¤Ç¤¹¡£¤·¤¿¤¬¤Ã¤Æ¡¢Java ¥³¥ó¥Ñ¥¤¥é¤Î¼ÂÁõ¤¬°Û¤Ê¤Ã¤Æ¤â \f2serialVersionUID\fP Ãͤΰì´ÓÀ¤ò³ÎÊݤˤ¹¤ë¤Ë¤Ï¡¢Ä¾Îó²½²Äǽ¥¯¥é¥¹¤¬ \f2serialVersionUID\fP ÃͤòÌÀ¼¨Åª¤ËÀë¸À¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£ |
| .TP 3 |
| static |
| static ¤Î»ÈÍѤ˴ؤ¹¤ëÌäÂê¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| class XLintStatic { |
| .fl |
| static void m1() { } |
| .fl |
| void m2() { this.m1(); } |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .LP |
| ¥³¥ó¥Ñ¥¤¥é¤Ï¼¡¤Î·Ù¹ð¤òÀ¸À®¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| warning: [static] static method should be qualified by type name, XLintStatic, instead of by an expression |
| .fl |
| \fP |
| .fi |
| .LP |
| ¤³¤ÎÌäÂê¤ò²ò·è¤¹¤ë¤¿¤á¤Ë¡¢¼¡¤Î¤è¤¦¤Ë static ¥á¥½¥Ã¥É \f2m1\fP ¤ò¸Æ¤Ó½Ð¤¹¤³¤È¤¬¤Ç¤¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| XLintStatic.m1(); |
| .fl |
| \fP |
| .fi |
| .LP |
| ¤¢¤ë¤¤¤Ï¡¢ \f2static\fP ¥¡¼¥ï¡¼¥É¤ò¥á¥½¥Ã¥É \f2m1\fP ¤ÎÀë¸À¤«¤éºï½ü¤¹¤ë¤³¤È¤â¤Ç¤¤Þ¤¹¡£ |
| .TP 3 |
| try |
| try\-with\-resources ʸ¤ò´Þ¤à¡¢ \f2try\fP ¥Ö¥í¥Ã¥¯¤Î»ÈÍѤ˴ؤ¹¤ëÌäÂê¤Ë¤Ä¤¤¤Æ·Ù¹ð¤·¤Þ¤¹¡£¤¿¤È¤¨¤Ð¡¢try ʸ¤ÇÀë¸À¤µ¤ì¤¿¥ê¥½¡¼¥¹ \f2ac\fP ¤¬»ÈÍѤµ¤ì¤Ê¤¤¤¿¤á¤Ë¡¢ \f2¼¡¤Îʸ¤ËÂФ·¤Æ·Ù¹ð¤¬\fP À¸À®¤µ¤ì¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| try ( AutoCloseable ac = getResource() ) { |
| .fl |
| // do nothing |
| .fl |
| } |
| .fl |
| \fP |
| .fi |
| .TP 3 |
| unchecked |
| Java ¸À¸ì»ÅÍͤǻØÄꤵ¤ì¤Æ¤¤¤ë̤¸¡ººÊÑ´¹·Ù¹ð¤Î¾ÜºÙ¤ò¼¨¤·¤Þ¤¹¡£¼¡¤ËÎã¤ò¼¨¤·¤Þ¤¹¡£ |
| .nf |
| \f3 |
| .fl |
| List l = new ArrayList<Number>(); |
| .fl |
| List<String> ls = l; // unchecked warning |
| .fl |
| \fP |
| .fi |
| .LP |
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| \f2\-source 1.6\fP ¥ª¥×¥·¥ç¥ó¤Ë¤è¤ê¡¢ \f2OldCode.java\fP ¤Î¥³¥ó¥Ñ¥¤¥ë¤Ë¤Ï¥Ð¡¼¥¸¥ç¥ó 1.6 (¤Þ¤¿¤Ï 6) ¤Î Java ¥×¥í¥°¥é¥ß¥ó¥°¸À¸ì¤¬»ÈÍѤµ¤ì¤Þ¤¹¡£\f3\-target 1.6\fP ¥ª¥×¥·¥ç¥ó¤Ë¤è¤ê¡¢1.6 VM ¤È¸ß´¹À¤Î¤¢¤ë¥¯¥é¥¹¥Õ¥¡¥¤¥ë¤¬À¸À®¤µ¤ì¤Þ¤¹¡£¤Û¤È¤ó¤É¤Î¾ì¹ç¡¢\f3\-target\fP ¥ª¥×¥·¥ç¥ó¤ÎÃÍ¤Ï \f3\-source\fP ¥ª¥×¥·¥ç¥ó¤ÎÃͤˤʤê¤Þ¤¹¡£¤³¤ÎÎã¤Ç¤Ï¡¢\f3\-target\fP ¥ª¥×¥·¥ç¥ó¤ò¾Êά¤Ç¤¤Þ¤¹¡£ |
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| \f3\-bootclasspath\fP ¥ª¥×¥·¥ç¥ó¤ò»ÈÍѤ·¤Æ¡¢Å¬ÀڤʥС¼¥¸¥ç¥ó¤Î¥Ö¡¼¥È¥¹¥È¥é¥Ã¥×¥¯¥é¥¹ ( \f2rt.jar\fP ¥é¥¤¥Ö¥é¥ê) ¤ò»ØÄꤹ¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£»ØÄꤷ¤Ê¤¤¾ì¹ç¤Ï¡¢¥³¥ó¥Ñ¥¤¥é¤Ë¤è¤Ã¤Æ¼¡¤Î·Ù¹ð¤¬À¸À®¤µ¤ì¤Þ¤¹¡£ |
| .LP |
| .nf |
| \f3 |
| .fl |
| % \fP\f3javac \-source 1.6 OldCode.java\fP |
| .fl |
| warning: [options] bootstrap class path not set in conjunction with \-source 1.6 |
| .fl |
| .fi |
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| ŬÀڤʥС¼¥¸¥ç¥ó¤Î¥Ö¡¼¥È¥¹¥È¥é¥Ã¥×¥¯¥é¥¹¤ò»ØÄꤷ¤Ê¤¤¾ì¹ç¡¢¥³¥ó¥Ñ¥¤¥é¤Ï¸Å¤¤¸À¸ì»ÅÍÍ (¤³¤ÎÎã¤Ç¤Ï¡¢¥Ð¡¼¥¸¥ç¥ó 1.6 ¤Î Java ¥×¥í¥°¥é¥ß¥ó¥°¸À¸ì) ¤ò¿·¤·¤¤¥Ö¡¼¥È¥¹¥È¥é¥Ã¥×¥¯¥é¥¹¤ÈÁȤ߹ç¤ï¤»¤Æ»ÈÍѤ·¤Þ¤¹¡£¤½¤Î·ë²Ì¡¢Â¸ºß¤·¤Ê¤¤¥á¥½¥Ã¥É¤Ø¤Î»²¾È¤¬´Þ¤Þ¤ì¤Æ¤¤¤ë¤³¤È¤¬¤¢¤ë¤¿¤á¡¢¥¯¥é¥¹¥Õ¥¡¥¤¥ë¤¬¸Å¤¤¥×¥é¥Ã¥È¥Õ¥©¡¼¥à (¤³¤Î¾ì¹ç¤Ï Java SE 6) ¤ÇÆ°ºî¤·¤Ê¤¤²ÄǽÀ¤¬¤¢¤ê¤Þ¤¹¡£ |
| .LP |
| .SH "´ØÏ¢¹àÌÜ" |
| .LP |
| .RS 3 |
| .TP 2 |
| o |
| .na |
| \f2¡ÖThe javac Guide¡×\fP @ |
| .fi |
| http://java.sun.com/javase/6/docs/technotes/guides/javac/index.html |
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| ¡Öjava(1) \- Java ¥¢¥×¥ê¥±¡¼¥·¥ç¥óµ¯Æ°¥Ä¡¼¥ë¡× |
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| ¡Öjdb(1) \- Java ¥Ç¥Ð¥Ã¥¬¡× |
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| ¡Öjavah(1) \- C ¥Ø¥Ã¥À¡¼¤È¥¹¥¿¥Ö¥Õ¥¡¥¤¥ë¥¸¥§¥Í¥ì¡¼¥¿¡× |
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| o |
| ¡Öjar(1) \- JAR ¥¢¡¼¥«¥¤¥Ö¥Ä¡¼¥ë¡× |
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| o |
| .na |
| \f2¡ÖJava ³ÈÄ¥µ¡Ç½¥Õ¥ì¡¼¥à¥ï¡¼¥¯¡×\fP @ |
| .fi |
| http://java.sun.com/javase/6/docs/technotes/guides/extensions/index.html |
| .RE |
| |
| .LP |
| |
