{"id":162008,"date":"2020-09-28T14:58:20","date_gmt":"2020-09-28T06:58:20","guid":{"rendered":"http:\/\/4563.org\/?p=162008"},"modified":"2020-09-28T14:58:20","modified_gmt":"2020-09-28T06:58:20","slug":"%e4%b8%80%e4%ba%9b%e7%bb%86%e6%9e%9d%e6%9c%ab%e8%8a%82%e7%9a%84-java-%e9%a2%98-%e4%b9%9f%e8%ae%b8%e4%bd%a0%e4%b9%9f%e4%bc%9a%e8%a2%ab%e8%80%83%e5%88%b0%e5%91%a2%e3%80%82%e3%80%82","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=162008","title":{"rendered":"\u4e00\u4e9b\u7ec6\u679d\u672b\u8282\u7684 Java \u9898 \u4e5f\u8bb8\u4f60\u4e5f\u4f1a\u88ab\u8003\u5230\u5462\u3002\u3002"},"content":{"rendered":"
\n
\n
\n

\u4e00\u4e9b\u7ec6\u679d\u672b\u8282\u7684 Java \u9898 \u4e5f\u8bb8\u4f60\u4e5f\u4f1a\u88ab\u8003\u5230\u5462\u3002\u3002 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : Newyorkcity <\/span> <\/i> 5<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n
public class Main {      public static void main(String[] args) {         System.out.println(1 + 999 + \"s\");         System.out.println(\"s\" + 1 + 999);         int i = 128;         byte b = (byte) i;         System.out.println(b);     }      static class ConcreteClass {      }      static abstract class AbstractClass extends ConcreteClass {      } }  <\/code><\/pre>\n
\u7a0b\u5e8f\u80fd\u5426\u7f16\u8bd1\u901a\u8fc7\u5e76\u8fd0\u884c\uff1f \u53bb\u6389\u62bd\u8c61\u7c7b\u7ee7\u627f\u5177\u4f53\u7c7b\u8fd9\u4e2a\u9a9a\u64cd\u4f5c\u540e\u80fd\u7f16\u8bd1\u5e76\u8fd0\u884c\u5417\uff1f \u8fd0\u884c\u8f93\u51fa\u7684\u7ed3\u679c\u4f1a\u662f\u5565\uff1f<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (7<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : zhanglintc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8bd5\u4e86\u4e0b\uff0c\u4e0d\u53bb\u6389\u4e5f\u53ef\u4ee5\u8fd0\u884c\u6765\u7740\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : mxalbert1996 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u62bd\u8c61\u7c7b\u7ee7\u627f\u5177\u4f53\u7c7b\u600e\u4e48\u5c31\u6210\u9a9a\u64cd\u4f5c\u4e86\uff1f\u8fd9\u662f\u5f88\u5e38\u89c1\u7684\u8bbe\u8ba1\u5427\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : qwerthhusn <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 1000s
    s1999
    0<\/p>\n
    \u80fd\u8fd0\u884c
    \u80fd\u8fd0\u884c<\/p>\n
    \u6ca1\u95ee\u9898\uff0c\u6211\u90fd\u61d2\u5f97\u6253\u5f00\u7f16\u8f91\u5668\u6216\u8005 IDE \u53bb\u9a8c\u8bc1                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Newyorkcity <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @qwerthhusn \u6700\u540e\u4e00\u4e2a\u9519\u4e86 \u6211\u8fd9\u91cc\u8fd0\u884c\u51fa\u6765\u662f -128                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : qwerthhusn <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @Newyorkcity \u989d\uff0c\u7ffb\u8f66\u4e86\uff0c\u73b0\u4e86\u539f\u5f62
    \u5e94\u8be5\u662f 00000000 00000000 00000000 10000000
    \u6211\u60f3\u6210\u4e86 00000000 00000000 00000001 00000000                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : palmers <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 int i = 128;
    byte b = (byte) i;
    \u8fd9\u6bb5\u633a\u597d \u53ef\u4ee5\u5f15\u53d1\u8ba1\u7b97\u673a\u6570\u503c\u8868\u793a \u673a\u5668\u6570 \u771f\u503c \u539f\u7801 \u53cd\u7801 \u8865\u7801\u7684\u539f\u7406                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Newyorkcity <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @palmers \u6211\u5728\u505a\u7684\u65f6\u5019\u6709\u60f3\u8fc7\u673a\u5668\u662f\u5927\u5c0f\u7aef\u4f1a\u4e0d\u4f1a\u5f71\u54cd\u7ed3\u679c                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    \u4e00\u4e9b\u7ec6\u679d\u672b\u8282\u7684 Java \u9898 \u4e5f\u8bb8…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/162008"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=162008"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/162008\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=162008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=162008"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=162008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}