JVM整体结构:
java代码的执行流程
JVM的架构模型
public class StackStruTest {
public static void main(String[] args) {
int i = 2 + 3;
}
}
/*
反编译:
javap -v StackStruTest.class public static void main(java.lang.String[]);
descriptor: ([Ljava/lang/String;)V
flags: ACC_PUBLIC, ACC_STATIC
Code:
stack=1, locals=2, args_size=1
0: iconst_5
1: istore_1
2: return
LineNumberTable:
line 5: 0
line 6: 2
LocalVariableTable:
Start Length Slot Name Signature
0 3 0 args [Ljava/lang/String;
2 1 1 i I
}
SourceFile: "StackStruTest.java" */
JVM的生命周期
Runtime对应的就是JVM里面的运行时数据区
SUN公司的HotSpot VM