使用字符串错误的IntelliJ switch语句:使用-source 7 [英] IntelliJ switch statement using Strings error: use -source 7
问题描述
我正在尝试使用IntelliJ(在Mac OS X上)编译我使用Eclipse编写的一些代码。我试图运行以下代码:
switch(category){
case20以下:
低于20 ++;
休息;
案例20至29:
至30 ++;
休息;
案例30至39:
至40 ++;
休息;
case40 to 49:
to50 ++;
休息;
案例50至59:
至60 ++;
休息;
case60 to 69:
to70 ++;
休息;
case70 t0 79:
to80 ++;
休息;
case80 to 89:
to90 ++;
休息;
case90 to 99:
高于90 ++;
休息;
默认值:
break;
}
然而,我收到错误:
java:-source 1.6
不支持switch中的字符串(使用-source 7或更高版本来启用switch中的字符串)
我知道有些答案是:RTFE(即用Error替换Manual)。但我做到了。我尝试过以下方法:
- 首选项>编译器> Java编译器并添加
-source 7
和/或-target 1.7
到其他命令行参数 - 编辑配置:选中使用替代JDK 并在目录中写入
/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home
并没有修复它。我做错了什么?
注意:我知道这很明显,因为目录在上面,但我安装了Java 7 。 / p>
提前致谢!
在Intellij IDEA,您还应该转到项目设置
- > 项目
并设置相应的项目语言级别
那里
I'm trying to use IntelliJ (on Mac OS X) to compile some code I wrote using Eclipse. I've attempted to run the following code:
switch (category) {
case "below 20":
below20++;
break;
case "20 to 29":
to30++;
break;
case "30 to 39":
to40++;
break;
case "40 to 49":
to50++;
break;
case "50 to 59":
to60++;
break;
case "60 to 69":
to70++;
break;
case "70 t0 79":
to80++;
break;
case "80 to 89":
to90++;
break;
case "90 to 99":
above90++;
break;
default:
break;
}
However, I get the error:
java: strings in switch are not supported in -source 1.6
(use -source 7 or higher to enable strings in switch)
I know that some of the answers will be: RTFE (i.e. replace Manual with Error). But I did. I've attempted the following:
- Preferences > Compiler > Java Compiler and added
-source 7
and/or-target 1.7
to Additional command line parameters - Edit Configurations: checked Use Alternative JDK and wrote in the directory
/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home
And it hasn't fixed it. What am I doing wrong?
Note: I know this is obvious because the directory is above, but I do have Java 7 installed.
Thanks in advance!
At the Intellij IDEA you should also go to Project Settings
-> Project
and set appropriate Project language level
there
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