{"id":530,"date":"2021-02-02T22:08:43","date_gmt":"2021-02-02T14:08:43","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=530"},"modified":"2021-02-02T22:10:28","modified_gmt":"2021-02-02T14:10:28","slug":"%e6%99%ae%e9%80%9a%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b-%e4%b8%8e-%e5%ad%97%e7%ac%a6%e4%b8%b2%e8%bd%ac%e6%8d%a2","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-530.html","title":{"rendered":"\u666e\u901a\u6570\u636e\u7c7b\u578b \u4e0e \u5b57\u7b26\u4e32\u8f6c\u6362"},"content":{"rendered":"\n<h5>1.\u666e\u901a\u7c7b\u578b &#8211;&gt; \u5b57\u7b26\u4e32\u7c7b\u578b<\/h5>\n\n\n\n<p>\u6709\u591a\u79cd\u65b9\u5f0f\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>int a = 2;\nString s1 = a + \"\";  \/\/\u4f7f\u7528\u6700\u7b80\u5355\u7684 + \nint b = 2;\nInteger b2 = b;\nString s2 =  b2.toString(); \/\/\u4f7f\u7528\u5305\u88c5\u7c7b\u7684 toString \u65b9\u6cd5\nint c = 2;\nString s3 = String.valueOf(c);  \/\/\u4f7f\u7528 String.valueOf \u65b9\u6cd5<\/code><\/pre>\n\n\n\n<h5>2.\u5b57\u7b26\u4e32 &#8211;&gt; \u57fa\u672c\u7c7b\u578b<\/h5>\n\n\n\n<p>\u9664\u4e86 Character \u7c7b\u578b\u4ee5\u5916\uff0c\u5305\u88c5\u7c7b\u5747\u6709 parseXXX \u65b9\u6cd5\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684\u57fa\u672c\u7c7b\u578b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>String s = \"2\";\nbyte a = Byte.parseByte(s);  \/\/ byte\nshort b = Short.parseShort(s);  \/\/short\nint c = Integer.parseInt(s);  \/\/int\nLong d = Long.parseLong(s);  \/\/long\nfloat e = Float.parseFloat(s);  \/\/float\ndouble f = Double.parseDouble(s);  \/\/double \nboolean g = Boolean.parseBoolean(s); \/\/boolean<\/code><\/pre>\n\n\n\n<p>\u65e0\u6cd5\u76f4\u63a5\u8f6c\u5316\u4e3a char \uff0c\u53ef\u4ee5\u76f4\u63a5\u8f6c\u5316\u4e3a&#8217;\u5b57\u7b26\u6570\u7ec4&#8217;\uff0c\u6216\u53d6\u5355\u5b57\u7b26<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>String s = \"abc\";\nchar&#91;] chars = s.toCharArray();  \/\/\u8f6c\u5316\u4e3a\u5b57\u7b26\u6570\u7ec4\nchar c = s.charAt(1);  \/\/\u76f4\u63a5\u53d6\u67d0\u4e2a\u4e0b\u6807<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1.\u666e\u901a\u7c7b\u578b &#8211;&gt; \u5b57\u7b26\u4e32\u7c7b\u578b \u6709\u591a\u79cd\u65b9\u5f0f\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32 2.\u5b57\u7b26\u4e32 &#8211;&gt; &hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-530.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u666e\u901a\u6570\u636e\u7c7b\u578b \u4e0e \u5b57\u7b26\u4e32\u8f6c\u6362<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/530"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=530"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/530\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=530"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}