如何使计算器显示的GUI显示 [英] How do I make the GUI display of the calculator show
问题描述
我正在尝试通过NetBeans IDE使用JFrame编写计算器。当我运行代码时，它显示构建成功，但没有显示GUI显示。
这是代码的链接[link]（） [ ^ ]
我尝试了什么：
我确定设置了set.visible代码，但它仍然没有显示任何计算器。可能是什么问题？
I'm trying to code a calculator using JFrame through NetBeans IDE. When I run the code it shows build successful but but no GUI display is showing.
Here is the link to the code [link]()[^]
What I have tried:
I made sure I set the set.visible code but it still does not display any calculator. What could be the issue?
推荐答案
我确定我设置了set.visible代码，但它仍然不显示任何计算器。可能是什么问题？
I made sure I set the set.visible code but it still does not display any calculator. What could be the issue?
你的代码错了？但如何在不看代码的情况下判断？
有一个工具可以让你看到代码在做什么，它的名字是 debugger 。它也是一个很好的学习工具，因为它向你展示了现实，你可以看到哪种期望与现实相符。
当你不明白你的代码在做什么或为什么它做它做的时候，答案就是答案是调试器。
使用调试器查看代码正在执行的操作。只需设置断点并查看代码执行情况，调试器允许您逐行执行第1行并在执行时检查变量。
调试器 - 维基百科，免费的百科全书 [ ^ ]
http://docs.oracle.com/javase/7/docs/technotes/tools/windows/jdb.html [ ^ ]
https://www.jetbrains.com/idea/help/debugging-your-first-java-application.html [ ^ ]
调试器在这里向您展示你的代码正在做，你的任务是与它应该做的事情进行比较。
调试器中没有魔法，它没有找到错误，它只是帮助你。当代码没有达到预期的效果时，你就会接近一个错误。
Your code is wrong? but how to tell without seeing that code?
There is a tool that allow you to see what your code is doing, its name is debugger. It is also a great learning tool because it show you reality and you can see which expectation match reality.
When you don't understand what your code is doing or why it does what it does, the answer is debugger.
Use the debugger to see what your code is doing. Just set a breakpoint and see your code performing, the debugger allow you to execute lines 1 by 1 and to inspect variables as it execute.
Debugger - Wikipedia, the free encyclopedia[^]
http://docs.oracle.com/javase/7/docs/technotes/tools/windows/jdb.html[^]
https://www.jetbrains.com/idea/help/debugging-your-first-java-application.html[^]
The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't find bugs, it just help you to. When the code don't do what is expected, you are close to a bug.
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