Whether the class file is compiled with 32-bit or 64-bit jdk, it can be used universally

Whether the class file is compiled with 32-bit or 64-bit jdk, it can be used universally

Learned: https://blog.csdn.net/z3111001358/article/details/53364066

Java bytecode is not divided into 32-bit and 64-bit; JVM itself interprets it as native code to run;