
{"id":1643,"date":"2020-08-03T17:49:11","date_gmt":"2020-08-03T09:49:11","guid":{"rendered":"http:\/\/admin.evshou.com\/?p=1643"},"modified":"2020-08-07T16:06:00","modified_gmt":"2020-08-07T08:06:00","slug":"2020java%e6%95%99%e7%a8%8b%ef%bc%9a%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/www.9713job.com\/?p=1643","title":{"rendered":"2020java\u6559\u7a0b\uff1a\u6570\u636e\u7c7b\u578b"},"content":{"rendered":"<h2>\u6570\u636e\u7c7b\u578b<\/h2>\n<p>java\u4e2d\u7684\u53d8\u91cf\u5177\u6709\u4e25\u683c\u7684\u6570\u636e\u7c7b\u578b\u533a\u5206\u3002(\u5f3a\u7c7b\u578b\u8bed\u8a00)<br \/>\n\u5728java\u8bed\u8a00\u4e2d\u5417\uff0c\u4efb\u4f55\u4e00\u4e2a\u503c\uff0c\u90fd\u6709\u5176\u5bf9\u5e94\u7684\u7c7b\u578b\u7684\u53d8\u91cf<br \/>\njava\u4e2d\u7684\u6570\u636e\u7c7b\u578b<\/p>\n<p>\u57fa\u672c\u6570\u636e\u7c7b\u578b \u2013 \u6574\u6570\u3001\u5c0f\u6570\u3001\u5e03\u5c14\u3001\u5b57\u7b26<br \/>\n\u5f15\u7528\u6570\u636e\u7c7b\u578b \u2013 \u5b57\u7b26\u4e32\u3001\u6570\u7ec4\u3001\u5bf9\u8c61<\/p>\n<h2>\u57fa\u672c\u6570\u636e\u7c7b\u578b(\u6574\u6570)<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u7c7b\u578b<\/th>\n<th>\u5b57\u8282<\/th>\n<th>\u53d6\u503c\u8303\u56f4(\u4e8c\u8fdb\u5236)<\/th>\n<th>\u53d6\u503c\u8303\u56f4(\u5341\u8fdb\u5236)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>byte<\/td>\n<td>1<\/td>\n<td>-2^7 ~ 2^7-1<\/td>\n<td>-128~127<\/td>\n<\/tr>\n<tr>\n<td>short<\/td>\n<td>2<\/td>\n<td>-2^15~2^15-1<\/td>\n<td>-32768-32767<\/td>\n<\/tr>\n<tr>\n<td>int<\/td>\n<td>4<\/td>\n<td>-2^31~2^31-1<\/td>\n<td>-2147483648~2147483647<\/td>\n<\/tr>\n<tr>\n<td>long<\/td>\n<td>8<\/td>\n<td>-2^63~2^63-1<\/td>\n<td>-9223372036854775808~9223372036854775807<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><!--more--><\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u6ce8\u610f\uff1aint \u4e3a\u6574\u6570\u7684\u9ed8\u8ba4\u7c7b\u578b\uff0c\u5982\u9700\u4e3along\u7c7b\u578b\u8d4b\u503c\uff0c\u9700\u8981\u5728\u503c\u7684\u540e\u9762\u8ffd\u52a0 L<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>\u57fa\u672c\u6570\u636e\u7c7b\u578b(\u5c0f\u6570)<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7c7b\u578b<\/th>\n<th>\u5b57\u8282<\/th>\n<th>\u8d1f\u6570\u53d6\u503c\u8303\u56f4<\/th>\n<th>\u6b63\u6570\u53d6\u503c\u8303\u56f4<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>float<\/td>\n<td>4<\/td>\n<td>-3.4E+38~-1.4E-45<\/td>\n<td>1.4E-45~3.4E+38<\/td>\n<\/tr>\n<tr>\n<td>double<\/td>\n<td>8<\/td>\n<td>-1.7E+308 ~ -4.9E-324<\/td>\n<td>4.9E-324 ~ 1.7E+308<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>\u6d6e\u70b9\u578b\u6570\u503c\u91c7\u7528\u79d1\u5b66\u8ba1\u6570\u6cd5\u8868\u793a\uff1a<\/p>\n<p>2E3 \u7b49\u4ef7\u4e8e 2 * 10 ^ 3 \uff08\u7ed3\u679c\uff1a 2000.0 \uff09<br \/>\n3E5 \u7b49\u4ef7\u4e8e 3 * 10 ^ 5 \uff08\u7ed3\u679c\uff1a 300000.0 \uff09<br \/>\n<strong>\u6ce8\u610f\uff1a double \u4e3a\u6d6e\u70b9\u6570\u7684\u9ed8\u8ba4\u7c7b\u578b\uff0c\u5982\u9700\u4e3a float \u7c7b\u578b\u8d4b\u503c\uff0c\u9700\u8981\u5728\u503c\u7684\u540e\u9762\u8ffd\u52a0 F<\/strong><\/p>\n<p>\u57fa\u672c\u6570\u636e\u7c7b\u578b(\u5e03\u5c14)<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7c7b\u578b<\/th>\n<th>\u5b57\u8282<\/th>\n<th>\u53d6\u503c\u8303\u56f4<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>boolean<\/td>\n<td>1<\/td>\n<td>true\/false<\/td>\n<td>\u771f \u6216 \u5047<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>\u53ef\u76f4\u63a5\u8d4b\u503c true \/ false<br \/>\n\u4e5f\u53ef\u8d4b\u503c\u4e00\u4e2a\u7ed3\u679c\u4e3a true \/ false\u7684\u8868\u8fbe\u5f0f<br \/>\n\u6ce8\u610f\uff1ajava\u4e2d\u7684boolean\u4e0d\u80fd\u53c2\u4e0e\u7b97\u6570\u8fd0\u7b97<br \/>\n\u57fa\u672c\u6570\u636e\u7c7b\u578b(\u5b57\u7b26)<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7c7b\u578b<\/th>\n<th>\u5b57\u8282<\/th>\n<th>\u53d6\u503c\u8303\u56f4(\u65e0\u7b26\u53f7\u6570)<\/th>\n<th>\u5b57\u7b26\u7f16\u7801<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>char<\/td>\n<td>2<\/td>\n<td>0~65535<\/td>\n<td>Unicode\u5b57\u7b26\u96c6\uff08\u4e07\u56fd\u7801\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Unicode\u5b57\u7b26\u96c6\u652f\u6301ASCII\u7f16\u7801(\u7f8e\u56fd\u6807\u51c6\u4fe1\u606f\u4ea4\u6362\u7801)<br \/>\nUnicode\u4e2d\u6bcf\u4e2a\u5b57\u7b26\u90fd\u5bf9\u5e94\u4e00\u4e2a\u5341\u8fdb\u5236\u6574\u6570\uff0c\u4ece\u800c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u5f0f\u8d4b\u503c<\/p>\n<p>\u5b57\u7b26\u8d4b\u503c\uff1a char c1=\u2019A\u2019;\u901a\u8fc7 \u2018\u2019 \u63cf\u8ff0\u4e3a\u5b57\u7b26\u8d4b\u503c<br \/>\n\u6574\u6570\u8d4b\u503c\uff1a char c2=65;\u901a\u8fc7\u5341\u8fdb\u5236\u657065\u5728\u5b57\u7b26\u96c6\u4e2d\u5bf9\u5e94\u7684\u5b57\u7b26\u8d4b\u503c<br \/>\n\u8fdb\u5236\u8d4b\u503c\uff1a char c3=\u2019\\u0041\u2019;\u901a\u8fc7\u5341\u516d\u8fdb\u5236\u6570 41 \u5728\u5b57\u7b26\u96c6 \u4e2d\u6240\u5bf9\u5e94\u7684\u5b57\u7b26\u8d4b\u503c<\/p>\n<p>\u8f6c\u4e49\u5b57\u7b26<br \/>\n\\n \u6362\u884c\u7b26<br \/>\n\\t \u7f29\u8fdb(\u5236\u8868\u4f4d)<br \/>\n\\\\ \u53cd\u659c\u7ebf<br \/>\n\\&#8217; \u5355\u5f15\u53f7<br \/>\n\\&#8221; \u53cc\u5f15\u53f7<\/p>\n<p>\u5f15\u7528\u6570\u636e\u7c7b\u578b(\u5b57\u7b26\u4e32)<br \/>\n\u7c7b\u578b \u53d6\u503c\u8303\u56f4 \u5b57\u7b26\u7f16\u7801<br \/>\nStrng \u4efb\u4f55 \u201c\u201d \u4e4b\u95f4\u7684\u5b57\u9762\u503c Unicode\u5b57\u7b26\u5e8f\u5217<br \/>\n\u7528\u6cd5\uff1a String str=&#8221;str&#8221;;<\/p>\n<p>\u7c7b\u578b\u8f6c\u6362<br \/>\n1.\u81ea\u52a8\u7c7b\u578b\u8f6c\u6362<\/p>\n<p>\u4e24\u79cd\u7c7b\u578b\u76f8\u4e92\u517c\u5bb9<br \/>\n\u76ee\u6807\u7c7b\u578b\u5927\u4e8e\u6e90\u7c7b\u578b<br \/>\nshort s=123;<br \/>\nint i=s; \/\/\u81ea\u52a8\u8f6c\u6362\u6210\u529f\uff0c\u7f16\u8bd1\u901a\u8fc7<\/p>\n<p>2.\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362<\/p>\n<p>\u4e24\u79cd\u7c7b\u578b\u76f8\u4e92\u517c\u5bb9<\/p>\n<p>\u76ee\u6807\u7c7b\u578b\u5c0f\u4e8e \u6e90\u7c7b\u578b<br \/>\nshort s=123;<br \/>\nbyte b=(byte)s;\/\/\u5f3a\u6362\uff1a(\u76ee\u6807\u7c7b\u578b)\u503c<\/p>\n<p>\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u89c4\u5219<br \/>\n\u6574\u6570\u957f\u5ea6\u8db3\u591f\uff0c\u6570\u636e\u5b8c\u6574<br \/>\nint i=100;<br \/>\nbyte b=(byte)i;\/\/b=100<\/p>\n<p>\u6574\u6570\u957f\u5ea6\u4e0d\u591f\uff0c\u6570\u636e\u622a\u65ad<br \/>\nint i=10000;<br \/>\nbyte b=(byte)i;\/\/b=16(\u7b26\u53f7\u4f4d\u53d8\u5316\uff0c\u53ef\u80fd\u53d8\u4e3a\u8d1f\u6570)<\/p>\n<p>\u5c0f\u6570\u5f3a\u8f6c\u6574\u6570\uff0c\u6570\u636e\u622a\u65ad<br \/>\ndouble d=2.5;<br \/>\nint i=(int)d;\/\/i=2;(\u5c0f\u6570\u4f4d\u820d\u6389)<\/p>\n<p>\u5b57\u7b26\u6574\u6570\u4e92\u8f6c\uff0c\u6570\u636e\u5b8c\u6574<br \/>\nchar c=65;<br \/>\nint i=c;\/\/i=65;<\/p>\n<p>boolean\u7684\u53d6\u503c\u4e3a true\/false\uff0c\u4e0d\u53ef\u4e0e\u5176\u4ed6\u7c7b\u578b\u8f6c\u6362<\/p>\n<p>\u8868\u8fbe\u5f0f<br \/>\n\u4f7f\u7528\u8fd0\u7b97\u7b26\u8fde\u63a5\u7684\u53d8\u91cf\u6216\u5b57\u9762\u91cf\uff0c\u5e76\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u6700\u7ec8\u7ed3\u679c\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<p>int a=5;<br \/>\nint b=7;<br \/>\nb-a;<\/p>\n<p>\u81ea\u52a8\u7c7b\u578b\u63d0\u5347<br \/>\n\u8fdb\u884c\u7b97\u6570\u8fd0\u7b97\u65f6\uff1a<\/p>\n<p>\u4e24\u4e2a\u64cd\u4f5c\u6570\u6709\u4e00\u4e2a\u4e3a double \uff0c\u8ba1\u7b97\u7ed3\u679c\u63d0\u5347\u4e3a double \u3002<br \/>\n\u5982\u679c\u64cd\u4f5c\u6570\u4e2d\u6ca1\u6709 double \uff0c\u6709\u4e00\u4e2a\u4e3a float \uff0c\u8ba1\u7b97\u7ed3\u679c\u63d0\u5347\u4e3a float \u3002<br \/>\n\u5982\u679c\u64cd\u4f5c\u6570\u4e2d\u6ca1\u6709 float \uff0c\u6709\u4e00\u4e2a\u4e3a long \uff0c\u8ba1\u7b97\u7ed3\u679c\u63d0\u5347\u4e3a long \u3002<br \/>\n\u5982\u679c\u64cd\u4f5c\u6570\u4e2d\u6ca1\u6709 long \uff0c\u6709\u4e00\u4e2a\u4e3a int \uff0c\u8ba1\u7b97\u7ed3\u679c\u63d0\u5347\u4e3a int \u3002<br \/>\n\u5982\u679c\u64cd\u4f5c\u6570\u4e2d\u6ca1\u6709 int \uff0c\u5747\u4e3a short \u6216 byte \uff0c\u8ba1\u7b97\u7ed3\u679c\u4ecd\u65e7\u63d0\u5347\u4e3a int \u3002<br \/>\n\u7279\u6b8a\uff1a\u4efb\u4f55\u7c7b\u578b\u4e0e String \u76f8\u52a0\uff08+\uff09\u65f6\uff0c\u5b9e\u4e3a\u62fc\u63a5\uff0c\u5176\u7ed3\u679c\u81ea\u52a8\u63d0\u5347\u4e3a String<\/p>\n<p><a href=\"https:\/\/uland.taobao.com\/coupon\/edetail?e=QfOZyfLP1BcNfLV8niU3RxsUty%2FyJZUCIUcOemCte8jHoQe1tkK55bZB4GXhba7v0gMJrKLaoAceYlFxapWyOPwwX6gXPBhmNF28%2BKPQxkJpbcXH2fi%2Ftir0zRC7UcA7TLHvsIjaXnopittLLX3A350rYuSe8KCBIStJ2xNxdKHktJ%2Fm8FjpNkE1jn26Wtf5sXwp43pyqpxMDQVG07AK7A%3D%3D&amp;app_pvid=59590_11.170.86.68_552_1596448222725&amp;ptl=floorId%3A17741&amp;app_pvid%3A59590_11.170.86.68_552_1596448222725&amp;tpp_pvid%3A&amp;union_lens=lensId%3APUB%401596447553%40e7543f4d-fad7-4b0a-a2fe-5f6922023df2_620167629157%40025XU4MVsASEw6uAyh1VZHHz\" target=\"_blank\" rel=\"noopener noreferrer\"><br \/>\n<img decoding=\"async\" title=\"\u590f\u5b63\u51b0\u4e1d\u5706\u9886\u8fd0\u52a8\u77ed\u8896T\u6064\u4f11\u95f2\u8dd1\u6b65\u5bbd\u677e\u901f\u5e72\u7537\u58eb\u4e94\u5206\u88e4\u4f53\u6064\u7537\u5957\u88c5 \" src=\"https:\/\/img.alicdn.com\/i4\/2986082989\/O1CN01I1DoFD1Xx0RlbiYdj_!!0-item_pic.jpg\" width=\"100%\" \/><br \/>\n<\/a><\/p>\n<p>\u8fd0\u7b97\u7b26<br \/>\n1.\u7b97\u6570\u8fd0\u7b97\u7b26\uff1a\u4e24\u4e2a\u64cd\u4f5c\u7b26\u8fdb\u884c\u8ba1\u7b97<\/p>\n<table>\n<thead>\n<tr>\n<th>\u64cd\u4f5c\u7b26<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>+<\/td>\n<td>\u76f8\u52a0\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x+z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>&#8211;<\/td>\n<td>\u76f8\u51cf\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x-z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>*<\/td>\n<td>\u76f8\u4e58\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x*z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>\/<\/td>\n<td>\u9664\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x\/z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>%<\/td>\n<td>\u6a21\uff0c\u53d6\u4f59\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x%z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>++<\/td>\n<td>\u9012\u589e\uff0c\u53d8\u91cf\u503c+1\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;x++;<\/code><\/td>\n<\/tr>\n<tr>\n<td>\u2013<\/td>\n<td>\u9012\u51cf\uff0c\u53d8\u91cf\u503c-1\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;x--;<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>2.\u8d4b\u503c\u8fd0\u7b97\u7b26\uff1a\u7b49\u53f7\u53f3\u8fb9\u8d4b\u503c\u7ed9\u7b49\u53f7\u5de6\u8fb9<\/p>\n<table>\n<thead>\n<tr>\n<th>\u64cd\u4f5c\u7b26<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>=<\/td>\n<td>\u8d4b\u503c\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;<\/code><\/td>\n<\/tr>\n<tr>\n<td>+=<\/td>\n<td>\u76f8\u52a0\u540e\u8d4b\u503c\u00a0<code class=\"language-plaintext highlighter-rouge\">int x+=5;<\/code><\/td>\n<\/tr>\n<tr>\n<td>-=<\/td>\n<td>\u76f8\u51cf\u540e\u8d4b\u503c\u00a0<code class=\"language-plaintext highlighter-rouge\">int x-=5;<\/code><\/td>\n<\/tr>\n<tr>\n<td>*=<\/td>\n<td>\u76f8\u4e58\u540e\u8d4b\u503c\u00a0<code class=\"language-plaintext highlighter-rouge\">int x*=5;<\/code><\/td>\n<\/tr>\n<tr>\n<td>\/=<\/td>\n<td>\u9664\u540e\u8d4b\u503c\u00a0<code class=\"language-plaintext highlighter-rouge\">int x\/=5;<\/code><\/td>\n<\/tr>\n<tr>\n<td>%=<\/td>\n<td>\u53d6\u4f59\u540e\u8d4b\u503c\u00a0<code class=\"language-plaintext highlighter-rouge\">int x%=5;<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>3.\u5173\u7cfb\u8fd0\u7b97\u7b26\uff1a\u4e24\u4e2a\u64cd\u4f5c\u6570\u8fdb\u884c\u6bd4\u8f83<\/p>\n<table>\n<thead>\n<tr>\n<th>\u64cd\u4f5c\u7b26<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>&gt;<\/td>\n<td>\u5927\u4e8e\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x&gt;z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>&lt;<\/td>\n<td>\u5c0f\u4e8e\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x&lt;z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>&gt;=<\/td>\n<td>\u5927\u4e8e\u7b49\u4e8e\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x&gt;=z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>&lt;=<\/td>\n<td>\u5c0f\u4e8e\u7b49\u4e8e\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x&lt;=z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>==<\/td>\n<td>\u7b49\u4e8e\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x==z;<\/code><\/td>\n<\/tr>\n<tr>\n<td>!=<\/td>\n<td>\u4e0d\u7b49\u4e8e\u00a0<code class=\"language-plaintext highlighter-rouge\">int x=5;int z=7;x!=z;<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>4.\u903b\u8f91\u8fd0\u7b97\u7b26\uff1a\u4e24\u4e2aboolean\u7c7b\u578b\u7684\u64cd\u4f5c\u6570\u6216\u8868\u8fbe\u5f0f\u8fdb\u884c\u903b\u8f91\u6bd4\u8f83<\/p>\n<table>\n<thead>\n<tr>\n<th>\u64cd\u4f5c\u7b26<\/th>\n<th>\u63cf\u8ff0<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>&amp;&amp;<\/td>\n<td>\u5e76\u4e14<\/td>\n<td>\u4e24\u4e2a\u64cd\u4f5c\u6570\uff0c\u540c\u65f6\u4e3a\u771f\uff0c\u7ed3\u679c\u4e3a\u771f<\/td>\n<\/tr>\n<tr>\n<td>II<\/td>\n<td>\u6216\u8005<\/td>\n<td>\u4e24\u4e2a\u64cd\u4f5c\u6570\uff0c\u6709\u4e00\u4e2a\u4e3a\u771f\uff0c\u7ed3\u679c\u4e3a\u771f<\/td>\n<\/tr>\n<tr>\n<td>!<\/td>\n<td>\u975e\uff0c\u53d6\u53cd<\/td>\n<td>\u610f\u4e3a\u201c\u4e0d\u662f\u201d\uff0c\u771f\u5373\u662f\u5047\uff0c\u5047\u5373\u662f\u771f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>5.\u4e09\u5143\u8fd0\u7b97\u7b26\uff1a\u5c06\u5224\u65ad\u540e\u7684\u7ed3\u679c\u8d4b\u503c\u7ed9\u53d8\u91cf<\/p>\n<table>\n<thead>\n<tr>\n<th>\u64cd\u4f5c\u7b26<\/th>\n<th>\u8bed\u4e49<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>? :<\/td>\n<td>\u8868\u8fbe\u5f0f ? \u7ed3\u679c1 : \u7ed3\u679c2<\/td>\n<td>\u5f53\u8868\u8fbe\u5f0f\u7ed3\u679c\u4e3a\u771f\uff0c\u83b7\u5f97\u7ed3\u679c1<br \/>\n\u5f53\u8868\u8fbe\u5f0f\u7ed3\u679c\u4e3a\u5047\uff0c\u83b7\u5f97\u7ed3\u679c2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>a%b==0 ? true : false;<\/p>\n<p>\u63a7\u5236\u53f0\u8f93\u5165<\/p>\n<p>\u7a0b\u5e8f\u8fd0\u884c\u4e2d\uff0c\u53ef\u5728\u63a7\u5236\u53f0(\u7ec8\u7aef)\u624b\u52a8\u5f55\u5165\u6570\u636e\uff0c\u518d\u8ba9\u7a0b\u5e8f\u7ee7\u7eed\u8fd0\u884c<br \/>\n\u5bfc\u5305\u8bed\u6cd5\uff1aimport \u5305\u540d.\u7c7b\u540d;\/\/\u5c06\u5916\u90e8class\u6587\u4ef6\u529f\u80fd\u5f15\u5165\u5230\u81ea\u8eab\u6587\u4ef6\u4e2d\u3002<br \/>\n\u4f7f\u7528\u987a\u5e8f\uff1a<\/p>\n<p>\u5bfc\u5165 java.util.Scanner,\u6216\u8005 java.util.*;<\/p>\n<p>\u58f0\u660e Scanner \u7c7b\u578b\u7684\u53d8\u91cf\u3002<\/p>\n<p>\u4f7f\u7528 Scanner \u7c7b\u4e2d\u5bf9\u5e94\u7684\u51fd\u6570(\u533a\u5206\u7c7b\u578b)<\/p>\n<p>.nextInt();\/\/\u83b7\u5f97\u6574\u6570<br \/>\n.nextDouble();\/\/\u83b7\u5f97\u5c0f\u6570<br \/>\n.next();\/\/\u83b7\u5f97\u5b57\u7b26\u4e32<br \/>\n.next().charAt(0);\/\/\u83b7\u5f97\u5355\u4e2a\u5b57\u7b26<\/p>\n<p><strong>\u6ce8\uff1a\u5982\u679c\u8f93\u5165\u4e86\u4e0d\u5339\u914d\u7684\u6570\u636e\uff0c\u5219\u4f1a\u4ea7\u751f java.util.InputMismatchException<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u636e\u7c7b\u578b java\u4e2d\u7684\u53d8\u91cf\u5177\u6709\u4e25\u683c\u7684\u6570\u636e\u7c7b\u578b\u533a\u5206\u3002(\u5f3a\u7c7b\u578b\u8bed\u8a00) \u5728java\u8bed\u8a00\u4e2d\u5417\uff0c\u4efb\u4f55\u4e00\u4e2a\u503c\uff0c\u90fd\u6709\u5176\u5bf9\u5e94\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-1643","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1643"}],"version-history":[{"count":6,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1643\/revisions"}],"predecessor-version":[{"id":1795,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/1643\/revisions\/1795"}],"wp:attachment":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}