如果我在eclipse中更改bin文件夹，为什么jar会损坏？

Question

I have a finished program which compiled successfully and works just fine. Out of interest, I wanted to see the bytecode in the project folder in eclipse (under the bin folder). I accidentally saved it as a .txt rather than a .class and now the jar file won't work! It's not an issue, i've fixed it but why does this happen?

Answer 1

I presume it's simply because you changed the file extension, Eclipse couldn't find the .class file, and so it considered the .jar corrupt.

The output of a Java compiler is not executable code, but is actually bytecode. If Eclipse can't find this bytecode, it cannot execute your code.

I've found another answer that shows a plugin that will allow you to view bytecode using Eclipse in the future.