本文教你如何通过查看“系统偏好设置”、使用Java网站或者使用Mac“终端”来查看Mac上安装的Java版本。
步骤
方法 1 的 3:
查看系统偏好设置
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/2\/2a\/Check-Java-Version-on-a-Mac-Step-1.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-1.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/2\/2a\/Check-Java-Version-on-a-Mac-Step-1.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-1.jpg","smallWidth":460,"smallHeight":343,"bigWidth":728,"bigHeight":543,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
1
点击{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/f\/ff\/Macapple1.png","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/f\/ff\/Macapple1.png\/29px-Macapple1.png","smallWidth":460,"smallHeight":476,"bigWidth":29,"bigHeight":30,"licensing":"<div class=\"mw-parser-output\"><\/div>"}。它是顶部菜单栏左上角的苹果图标。点击后会打开一个下拉菜单。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/1\/1e\/Check-Java-Version-on-a-Mac-Step-2.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-2.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/1\/1e\/Check-Java-Version-on-a-Mac-Step-2.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
2
点击系统偏好设置。它是下拉菜单顶部的第二个选项。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/4\/4b\/Check-Java-Version-on-a-Mac-Step-3.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-3.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/4\/4b\/Check-Java-Version-on-a-Mac-Step-3.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-3.jpg","smallWidth":460,"smallHeight":342,"bigWidth":728,"bigHeight":541,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
3
点击Java图标。它是一个带有蓝色咖啡杯和橙色水汽的图标。点击它将会在一个新窗口中打开“Java控制面板”。
- 如果没有看到Java图标,那就说明还没有安装Java。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/d\/d1\/Check-Java-Version-on-a-Mac-Step-4.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-4.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/d\/d1\/Check-Java-Version-on-a-Mac-Step-4.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
4
点击顶部的更新选项卡。这个界面会显示你的Java版本,以及你是否需要更新Java。
- 如果有可用的更新,按照说明更新到最新推荐的Java版本。你还可以选中“检查自动更新”框,这样在推出新版本时,Java就会始终更新到最新版本。
方法 2 的 3:
浏览Java网站
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/c\/c8\/Check-Java-Version-on-a-Mac-Step-5.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-5.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/c\/c8\/Check-Java-Version-on-a-Mac-Step-5.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-5.jpg","smallWidth":460,"smallHeight":342,"bigWidth":728,"bigHeight":541,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
1
打开Mac上的Safari浏览器,它的图标看起来就像一个蓝色的指南针。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/6\/61\/Check-Java-Version-on-a-Mac-Step-6.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-6.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/6\/61\/Check-Java-Version-on-a-Mac-Step-6.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-6.jpg","smallWidth":460,"smallHeight":344,"bigWidth":728,"bigHeight":544,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
2
在Safari中前往 https://www.java.com/en/download/installed.jsp 。在地址栏中输入https://www.java.com/en/download/installed.jsp,然后按⏎ Return。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/b\/b0\/Check-Java-Version-on-a-Mac-Step-7.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-7.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/b\/b0\/Check-Java-Version-on-a-Mac-Step-7.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-7.jpg","smallWidth":460,"smallHeight":346,"bigWidth":728,"bigHeight":547,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
3
点击验证Java版本。它是页面中央的一个红色按钮。可能会弹出一个窗口,询问你是否希望在此页面上运行Java。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/4\/4c\/Check-Java-Version-on-a-Mac-Step-8.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-8.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/4\/4c\/Check-Java-Version-on-a-Mac-Step-8.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-8.jpg","smallWidth":460,"smallHeight":344,"bigWidth":728,"bigHeight":544,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
4
点击运行进行确认。这个网站将检测你正在运行的Java版本,并且如果有需要会建议更新。
方法 3 的 3:
从终端获取信息
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/7\/75\/Check-Java-Version-on-a-Mac-Step-9.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-9.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/7\/75\/Check-Java-Version-on-a-Mac-Step-9.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-9.jpg","smallWidth":460,"smallHeight":343,"bigWidth":728,"bigHeight":543,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
1
点击菜单栏右上角的“聚焦”{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/e\/ea\/Macspotlight.png","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/e\/ea\/Macspotlight.png\/30px-Macspotlight.png","smallWidth":460,"smallHeight":460,"bigWidth":30,"bigHeight":30,"licensing":"<div class=\"mw-parser-output\"><\/div>"}。这样将打开一个搜索栏,你可以在其中搜索电脑。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/a\/ae\/Check-Java-Version-on-a-Mac-Step-10.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-10.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/a\/ae\/Check-Java-Version-on-a-Mac-Step-10.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-10.jpg","smallWidth":460,"smallHeight":344,"bigWidth":728,"bigHeight":544,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
2
在搜索栏中输入终端。输入时,搜索结果将在搜索栏下方筛选出来。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/7\/7d\/Check-Java-Version-on-a-Mac-Step-11.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-11.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/7\/7d\/Check-Java-Version-on-a-Mac-Step-11.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-11.jpg","smallWidth":460,"smallHeight":344,"bigWidth":728,"bigHeight":544,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
3
双击“终端”{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/1\/14\/Macterminal.png","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/1\/14\/Macterminal.png\/30px-Macterminal.png","smallWidth":460,"smallHeight":460,"bigWidth":30,"bigHeight":30,"licensing":"<div class=\"mw-parser-output\"><\/div>"}。它是一个小黑盒子图标,角落里有一个白色的命令提示符。点击后将打开Mac“终端”。
-
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/4\/44\/Check-Java-Version-on-a-Mac-Step-12.jpg\/v4-460px-Check-Java-Version-on-a-Mac-Step-12.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/4\/44\/Check-Java-Version-on-a-Mac-Step-12.jpg\/v4-728px-Check-Java-Version-on-a-Mac-Step-12.jpg","smallWidth":460,"smallHeight":349,"bigWidth":728,"bigHeight":552,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
4
输入java -version,然后按⏎ Return。这条命令会告诉你Mac当前运行的Java版本。