{"id":13,"date":"2021-08-11T10:24:54","date_gmt":"2021-08-11T02:24:54","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/javav2\/?p=13"},"modified":"2021-08-17T15:38:54","modified_gmt":"2021-08-17T07:38:54","slug":"java%e5%9f%ba%e6%9c%ac%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/javav2\/post-13.html","title":{"rendered":"java\u57fa\u672c\u6570\u636e\u7c7b\u578b"},"content":{"rendered":"\n

java\u57fa\u672c\u6570\u636e\u7c7b\u578b8\u79cd<\/p>\n\n\n\n

  1. byte<\/li>
  2. short<\/li>
  3. int<\/li>
  4. long<\/li>
  5. float<\/li>
  6. double<\/li>
  7. char<\/li>
  8. boolean<\/li><\/ol>\n\n\n\n

    \u5206\u62102\u7c7b\uff0c\u53ef\u4ee5\u662f\u524d6\u79cd\u4e3a\u6570\u503c\u578b\uff0c\u540e2\u79cd\u975e\u6570\u503c\u3002<\/p>\n\n\n\n

    \u53ef\u4ee5\u5206\u62103\u7c7b\uff0c\u524d6\u4e3a\u6570\u503c\uff0c\u4ee5\u53ca\u5b57\u7b26\u3001\u5e03\u5c14\u578b\u3002<\/p>\n\n\n\n

    \u4e5f\u53ef\u4ee5\u5206\u62104\u7c7b\uff0c\u524d4\u4e3a\u6570\u503c\uff0c56\u4e3a\u6d6e\u70b9\u578b\uff0c\u4ee5\u53ca\u5b57\u7b26\u578b\u548c\u5e03\u5c14\u7c7b\u578b\u3002<\/p>\n\n\n\n

    float\u5b9a\u4e49\u65f6\uff0c\u9700\u8981\u52a0\u5927\u5199\u6216\u5c0f\u5199f\uff0clong\u7c7b\u578b\u53ef\u4ee5\u52a0L\u6216\u4e0d\u52a0\uff0cdouble\u53ef\u4ee5\u52a0\u6216\u4e0d\u52a0\u5927\u5c0f\u5199D\uff0c\u5b57\u7b26\u4e32\u9700\u8981\u52a0””\u62ec\u8d77\u6765\uff0c\u5b57\u7b26\u9700\u8981\u4f7f\u7528”\u62ec\u8d77\u6765\u3002<\/p>\n\n\n\n

    \u6570\u5b57\u9ed8\u8ba4\u662fint\u7c7b\u578b\uff0c\u6d6e\u70b9\u6570\u9ed8\u8ba4\u662fdouble\u3002<\/p>\n\n\n\n

    \u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u957f\u5ea6<\/p>\n\n\n\n

    \u7c7b\u578b<\/td>\u5b57\u8282\u957f\u5ea6<\/td>\u8303\u56f4<\/td><\/tr>
    byte<\/td>1<\/td>-27<\/sup>~27<\/sup>-1\uff08\u8865\u7801\uff09<\/td><\/tr>
    short<\/td>2<\/td>-215<\/sup>~215<\/sup>-1\uff08\u8865\u7801\uff09<\/td><\/tr>
    int<\/td>4<\/td>-231<\/sup>-231<\/sup>-1\uff08\u8865\u7801\uff09<\/td><\/tr>
    long<\/td>8<\/td>-263<\/sup>-263<\/sup>-1\uff08\u8865\u7801\uff09<\/td><\/tr>
    float<\/td>4<\/td>1.4E-45~3.4028235E38\uff08\u6d6e\u70b9\uff09<\/td><\/tr>
    double<\/td>8<\/td>4.9E-324~1.7976931348623157E308\uff08\u6d6e\u70b9\uff09<\/td><\/tr>
    char<\/td>2<\/td>\u4e00\u4e2a\u4e0d\u8d85\u8fc72\u5b57\u8282\u7684\u5b57\u7b26 \uff08\u975e\u8d1f\uff09<\/td><\/tr>
    boolean<\/td>1<\/td>true, false<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    \u5982\u4f55\u7406\u89e3\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u6570\u636e\u8303\u56f4\uff1f<\/p>\n\n\n\n

    \u4e00\u4e2a\u5b57\u8282\u4e3a8\u4f4d\uff0c\u524d4\u79cd\u6570\u636e\u7c7b\u578b\u4e2d\uff0c2n<\/sup>\u662f\u5b83\u7684\u603b\u4f53\u8303\u56f4\uff0c\u7531\u4e8e\u5206\u4e3a\u6b63\u6570\u548c\u8d1f\u6570\uff0c\u8865\u7801\u4e2d\u6b63\u6570\u4ece0\u5f00\u59cb\uff0c\u5219\u6b63\u6570\u6700\u5927\u503c\u662f2n-1<\/sup>\uff0c\u800c\u8d1f\u6570\u4e2d\u6ca1\u6709-0\uff0c\u8d1f\u6570\u6700\u5927\u503c\u662f-2n<\/sup>\u3002<\/p>\n\n\n\n

    \u5bf9\u4e8e\u6d6e\u70b9\u6570\uff0c\u5b83\u4f7f\u7528\u7684\u662f\u6d6e\u70b9\u6570\u8868\u793a\uff0c\u867d\u7136long\u4e3a8\u5b57\u8282\uff0cfloat\u4e3a4\u5b57\u8282\uff0c\u4f46float\u6bd4long\u8868\u793a\u7684\u6570\u503c\u8303\u56f4\u8981\u5927\u3002<\/p>\n\n\n\n

    \u5bf9\u4e8echar\u7c7b\u578b\uff0c\u8868\u793a\u4e00\u4e2a\u5b57\u7b26\uff0c\u4f46\u8be5\u5b57\u7b26\u7684\u5b57\u7b26\u96c6\u7f16\u7801\u4e0d\u80fd\u8d85\u8fc72\u5b57\u8282\u3002<\/p>\n\n\n\n

    boolean\u867d\u7136\u5360\u75281\u5b57\u8282\uff0c\u4f46\u5b83\u4ec5\u67092\u4e2a\u503c\u6709\u6548\uff0ctrue\uff0cfalse\u3002<\/p>\n\n\n\n

    \u5982\u679c\u5b9a\u4e49\u65f6\u8d4b\u503c\u8d85\u8fc7\u6570\u636e\u8303\u56f4\uff0c\u4f1a\u7f16\u8bd1\u62a5\u9519\uff0c\u5982\u679c\u7b97\u6570\u8fd0\u7b97\u540e\u8d85\u8fc7\u8303\u56f4\uff0c\u7ed3\u679c\u4e0d\u5bf9\u4f46\u4e0d\u62a5\u9519\u5c5e\u4e8e\u8fd0\u884c\u51fa\u9519\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    java\u57fa\u672c\u6570\u636e\u7c7b\u578b8\u79cd byte short int long float double char bool… \u7ee7\u7eed\u9605\u8bfb java\u57fa\u672c\u6570\u636e\u7c7b\u578b<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/13"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/comments?post=13"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/13\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/media?parent=13"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/categories?post=13"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/tags?post=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}