eclipse 的这个 template variable 是什么意思？ Java

[fspore]

The Java context additionally defines the following variables. Note: In the table below, id is a user-chosen name of a new variable.

${id:field(type[,type]*)}
Evaluates to a field in the current scope that is a subtype of any of the given types. If no type is specified, any non-primitive field matches.


Example:
${count:field(int)}


比如这个example的template到底有什么用？

[fspore]

呃，解决了，怎么删掉。