"Function" "andThen()" "apply()" of Java 是否有最多 7 步的限制？

Question

我有以下代码-

        Function<String, String> step1 = string -> string + " wakes up";
        Function<String, String> step2 = string -> string + "\nbrushes teeth";
        Function<String, String> step3 = string -> string + "\ngoes to toilet";
        Function<String, String> step4 = string -> string + "\ntakes a shower";
        Function<String, String> step5 = string -> string + "\nfeeds the cat";
        Function<String, String> step6 = string -> string + "\ncleans litter box";
        Function<String, String> step7 = string -> string + "\neats breakfast";
        Function<String, String> step8 = string -> string = "\ngoes for work";
        
        String name = "Neha";

System.out.println(step1.andThen(step2).andThen(step3).andThen(step4).andThen(step5).andThen(step6).andThen(step7).apply(name));

给我输出 -

Neha wakes up
brushes teeth
goes to toilet
takes a shower
feeds the cat
cleans litter box
eats breakfast

但是，

System.out.println(step1.andThen(step2).andThen(step3).andThen(step4).andThen(step5).andThen(step6).andThen(step7).andThen(step8).apply(name));

给我输出 -

goes for work

所以，我想知道这里是否有7步的最大限制。

我正在使用 Open JDK 11

Answer 1

没有。看看这个：

Function<String, String> step8 = string -> string = "\ngoes for work";

注意赋值运算符 = 而不是追加 +.

改为：

Function<String, String> step8 = string -> string + "\ngoes for work";

它应该会显示所需的结果。

为什么 Java 会随机限制为 7 步？

"Function" "andThen()" "apply()" of Java 是否有最多 7 步的限制？

Is there a limit of a maximum of 7 steps for "Function" "andThen()" "apply()" of Java?

java

functional-interface