不能从静态上下文中引用非静态方法 getDeviceList() [英]non-static method getDeviceList() cannot be referenced from a static context
setBackground():不能从静态上下文中引用非静态方法 [英]setBackground(): non-static method cannot be referenced from a static context
非 static 方法无法从 Java 中的 static 上下文问题中引用 [英]non static method cannot be referenced from a static context problem in Java
JApplet:在静态上下文错误中不能引用非静态方法 [英]JApplet: Non-static-method cannot be referenced in a static context error