???????Java??????????????????????????????.class???С??????
????1???????????javac A.java
????2)  ??????????javac -g A.java
????3)  ??????????javac -g:none A.java
???????????￡???A

 

public class A{
public static void main(String args[]){
for(int i=0;i<100000;i++){
A a = new A();
}
}
}

????????????????????????????.class?????С??????
?????????????322???
??????????????453???
??????????????238???
?????????????????.class????????????????￡?
?????????????????(Code)?????????(SourceFile Infomation)???????????б?(LineNumberTable)??
??????????????????(Code)?????????(SourceFile Infomation)???????????б?(LineNumberTable)???????????(LocalVariableTable)??
??????????????????(Code)??
????????javac -g:none A.java??????????????????????.class???????С??
????????javac -g A.java????????????????????.class?????????
??????javac A.java?????????????????У?????.class??????????С?