每当我碰到运行eclipse时，它都会给出先前运行程序的价值
[英]Whenever I hit run eclipse it gives value of previous run program
问题描述
Earlier when i am creating a new class for practicing programs in Eclipse. 
早些时候，我正在创建一个新类来在Eclipse中练习程序。 I use to create in same project and it used to run well. 我曾经在同一个项目中创建它，并且它过去运行良好。 But lately i have to specially go to Run>Run Configuration> I have to manually select the project and main class. 但是最近我必须专门去运行>运行配置>我必须手动选择项目和主类。
Is there any configuration im missing as this is time consuming to every time go and change the main class. 是否缺少任何配置，因为每次更改主类都会浪费时间。
Can anyone help? 有人可以帮忙吗？
2 个解决方案
解决方案1
0 2014-05-23 21:38:38
You can press the black arrow near the Run button to select what to run, usually you will find your classes with public static void main(String[] args) there. 您可以按“运行”按钮附近的黑色箭头选择要运行的内容，通常您会在其中找到带有public static void main(String[] args) 。 That's how it works for me. 这就是我的工作方式。
解决方案2
0 2014-05-23 22:10:45
The problem can be due to new class files not being generated due to errors. 该问题可能是由于错误导致无法生成新的类文件所致。 I have seen the same results as you (new changes not picked up) due to one or both of the following. 由于以下一项或两项，我看到了与您相同的结果（未取得新更改）。
1) Look for red-! 1）寻找红色！ or red-X next to a project and fix the problem(s) in that project. 或项目旁边的红色X并解决该项目中的问题。
2) Check the Problems tab and fix all red-X errors. 2）检查问题选项卡，并修复所有red-X错误。
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