命令查看java的class字节码文件

源代码：

public class Math {

    public static void main(String[] args){

        int a=1;

        int b=2;

        int c=(a+b)*10;

    }

}

1 用Oolong工具将java字节码翻译为类汇编语言

.source Math.java

.class public super Math

.super java/lang/Object

.method public <init> ()V

.limit stack 1

.limit locals 1

.line 1

l0:    aload_0

l1:    invokespecial java/lang/Object/<init> ()V

l4:    return

.end method

.method public static main ([Ljava/lang/String;)V

.limit stack 2

.limit locals 4

.line 4

l0:    iconst_1

l1:    istore_1

.line 5

l2:    iconst_2

l3:    istore_2

.line 6

l4:    iload_1

l5:    iload_2

l6:    iadd

l7:    bipush 10

l9:    imul

l10:    istore_3

.line 7

l11:    return

.end method

2 java –verbose查看运行类是加载了那些jar文件

3  javap查看字节码