让 Java 方法调用处理程序执行时传入的可变参数

Question

I've this Java method call:

csvOperations.readCsv(csvFile, templateId, args[2], args[3], args[4]);

This is an example call. Any number of args could be passed in on program executions and I'd like my method call to be able to cater for whatever length that is. How is this done?

My method declaration is like this:

public void readCsv(String csvFile, String templateId, String ... keyId)

Answer 1

最简单的方法可能是使用Arrays.copyOfRange将部分数组传递给您的方法：

csvOperations.readCsv(csvFile, templateId, Arrays.copyOfRange(args, 2, arg.length));