You need to fill javac with options. Meaning that you can't just call javac without a file to compile. when you write javac in terminal without any arguments, by default it will run javac -help and display the options you see.
To really see if it works: Create a new java file. To compile (in the same directory): javac <java_file_name>.java To run: java <java_file_name>
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您需要使用选项填充
Javac。这意味着如果没有文件编译，就不能只调用Javac。当您在没有任何参数的情况下编写Javac时，默认情况下它将运行Javac -help并显示您看到的选项。真正看看它是否有效：
创建一个新的Java文件。
编译（在同一目录中）：
Javac＆lt; Java_file_name＆gt; .java运行：
java＆lt; java_file_name＆gt;You need to fill
javacwith options. Meaning that you can't just call javac without a file to compile. when you write javac in terminal without any arguments, by default it will runjavac -helpand display the options you see.To really see if it works:
Create a new java file.
To compile (in the same directory):
javac <java_file_name>.javaTo run:
java <java_file_name>