Is there a Java equivalent to Javascript's with statement?
This question already has an answer here:
If the class of obj is under your control, you could provide a Fluent interface, basically returning this in every function. This would let you chain method calls like this-
obj.getHomeworkAverage().getTestAverage().getAttendance();
不，在Java中没有声明或类似的构造。
There is no direct equivalent of "with".
If the methods are instance methods, you can give the target object reference a short identifier for use in a block:
{
Student s = student;
s.getHomeworkAverage();
s.getTestAverage();
s.getAttendance();
}
If the methods are static, you can use "import static":
import static java.lang.Math.*;
public class Test {
public static void main(String[] args) {
System.out.println(sqrt(2));
}
}
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