今天用到@Override註解時，發現eclipse報錯The method xxx of type xxx must override a superclass method，網上一查，基本都是同一篇答案，如下：

java1.5中繼承介面是不需要@Override的，而在1.6中是需要新增@Override註解的，如果專案的編譯器是1.5版本的就可能報錯The method xxx of type must override a superclass method.
解決此問題的辦法是修改java編譯器的版本，方法是：elicpse的Project選單 –> Properties –> 找到Java Compiler將Compiler Compliance level修改為1.6即可

就連stackoverflow上的回答也是這個答案：

It sounds like the JDK compliance level of your project is set to 1.5. (The version of Java installed on the machine only determines how high you can set the compliance level.) You can check this in Eclipse by opening the project properties (right click on the project name, then select “Properties”) and selecting “Java Compiler” on the left.
In Java 1.6, the @Override annotation can (and should) be used on methods that are defined in implemented interfaces. Java 1.5 did not allow this.