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javadouble正则表达式
javadouble正则表达式
使用Java正则表达式去掉Double类型的数据后面多余的0
方法 /** * 使用java正则表达式去掉多余的.与0 * @param s * @return */ public static String subZeroAndDot(String s){ if(s.indexOf(".") > 0){ s = s.replaceAll("0+?$", "");//去掉多余的0 s = s.r...
匹配java double值的正则表达式
最近看到Java高手老紫竹写的《判断数字是否为double的正则表达式》,我近来也在学正则表达式的应用,所以来发挥发挥。这里用perl脚本写,因为它支持正则表达式比较好。让我们一步一步来解刨double浮点数: 普通的整数都是合法double型,带上后缀字母d或者D也是double型。比如: 1 +10 -100 100d 987D 因此用正则表达式: ^[-+]?/d[dD]$ 来匹配。 ...
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Dragonwell
Alibaba Dragonwell 是一款免费的, 生产就绪型Open JDK 发行版,提供长期支持,包括性能增强和安全修复。完全兼容 Java SE 标准,您可以在任何常用操作系统(包括 Linux、Windows 和 macOS)上开发 Java 应用程序。
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开发者必备
必备 IDE 插件
应用托管平台
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Dragonwell
Alibaba Dragonwell 是一款免费的, 生产就绪型Open JDK 发行版,提供长期支持,包括性能增强和安全修复。完全兼容 Java SE 标准,您可以在任何常用操作系统(包括 Linux、Windows 和 macOS)上开发 Java 应用程序。
立即下载
了解更多
开发者必备
必备 IDE 插件
应用托管平台