循环之后的问题 [英] problem after for loop

问题描述

嗨!!

这是我的for循环：

Shape [] shapes = new Shape [10];


for（int i = 0; i< shapes.length; i ++）

{

System.out.println（" \ n"）;

shapes [i] .printState（）;

area + = shapes [i] .area（）;
System.out.println（area ）;


}

我的问题是当我把System.out.println（）放出for循环时它没有'不运行（不打印任何东西）。我不明白为什么这样做？我需要一些建议:)谢谢

解决方案

< blockquote class =post_quotes>
嗨!!

这是我的for循环：

Shape [] shapes = new Shape [10];


for（int i = 0; i< shapes.length; i ++）

{

System.out.println（" \ n"）;

shapes [i] .printState（）;

area + = shapes [i] .area（）;
System.out.println（area ）;


}

我的问题是当我把System.out.println（）放出for循环时它没有'不跑（不打印什么）。我不明白为什么这样做？我需要一些建议:)谢谢

你的问题没有更多的背景就无法正确回答（代码

围绕您向我们展示的代码）。


''在哪里''区域''变量定义？这是编译运行吗？

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Hi !!
This is my for loop:
Shape[] shapes=new Shape[10];

for(int i=0;i<shapes.length;i++)
{
System.out.println("\n");
shapes[i].printState();
area+=shapes[i].area();
System.out.println(area);

}
My problem is that when i put the System.out.println() out of the for loop it doesn''t run( won''t print anything).I can''t understand why is doing it??I would need some advise :) thanks

解决方案

Hi !!
This is my for loop:
Shape[] shapes=new Shape[10];

for(int i=0;i<shapes.length;i++)
{
System.out.println("\n");
shapes[i].printState();
area+=shapes[i].area();
System.out.println(area);

}
My problem is that when i put the System.out.println() out of the for loop it doesn''t run( won''t print anything).I can''t understand why is doing it??I would need some advise :) thanks

Your question can''t be properly answered without a bit more context (code
around the code you''ve shown us).

Where is the ''area'' variable defined? Does this compile and run?

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