How do I uninstall Java 7 and later versions on my Mac? http://www.java.com/en/download/help/mac_uninstall_java.xml sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin sudo rm -fr /Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk…
难度 初级 学习时间 10分钟 适合人群 零基础 开发语言 Java 开发环境 JDK v11 文章原文链接 “全栈2019”Java第一章:安装JDK11(Mac) 下一章 “全栈2019”Java第二章:安装JDK11(Windows) 学习小组 加入同步学习小组,共同交流与进步. 方式一:关注头条号Gorhaf,私信“Java学习小组”. 方式二:关注公众号Gorhaf,回复“Java学习小组”. 全栈工程师学习计划 关注我们,加入“全栈工程师学习计划”. 版权声明 原创不易,未经允许不得…
import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.ArrayList; import java.util.Enumeration; import java.util.List; public class IpU…
有些机器有许多虚拟的网卡,获取IP地址时会出现一些意外,所以需要一些验证: // 获取mac地址 public static String getMacAddress() { try { Enumeration<NetworkInterface> allNetInterfaces = NetworkInterface.getNetworkInterfaces(); byte[] mac = null; while (allNetInterfaces.hasMoreElements()) { N…
// 获取ip地址 public static String getIpAddress() { try { Enumeration<NetworkInterface> allNetInterfaces = NetworkInterface.getNetworkInterfaces(); InetAddress ip = null; while (allNetInterfaces.hasMoreElements()) { NetworkInterface netInterface = (Netw…
You can run Java apps in two ways. The first is to run Java applets inside your Web browser with a plug-in. The second is to run native Java apps on your Mac. With the grave security concerns about Java these days, you may be thinking about how to re…
Java used to be deeply embedded in OS X, but in recent versions of the OS it's an optional install. Here is how to check to see if it is installed, and how to disable or remove it. There's some concern over the use of Java in OS X following a recent…
严重性 代码 说明 项目 文件 行 禁止显示状态错误 xamarin java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0 xama C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(3,3): Error: java.lang.Un…
http://docs.oracle.com/javase/8/docs/technotes/guides/install/mac_jdk.html#A1096855 This page describes how to install and uninstall JDK 8 for OS X computers. This page has these topics: "System Requirements" "JDK Installation Instructions&…
前言 近两年,Java 版本升级频繁,感觉刚刚掌握 Java8,写本文时,已听到 java14 的消息,无论是尝鲜新特性(Java12 中 Collectors.teeing 超强功能使用),还是由于项目升级/兼容需要,我们可能都要面临管理多个 Java 版本的情 另外 Oracle 自 Java11 开始,更改了用户协议,任何商用都会收费.在写本文时,得到消息「微软宣布加入 OpenJDK」,打不过就选择 OpenJDK.随便 G 一下,当个故事了解就可以 配置单个 Java 环境变量本身没什…