关于 Java 字节码的请教

• 这几天翻阅了书籍有些头绪，特来回帖，如果错误望指出

代码

package core.object_create;
public class ObjectTest {
    private String name = "v2";
    public void add() {
        int i10 = -1;
        int i0 = 5;
        int i1 = 6;
        int i2 = 127;
        int i3 = 150;
        int sum = i10 + i0 + i1 + i2 + i3;
    }
}

字节码

public class core/object_create/ObjectTest {
  private Ljava/lang/String; name

  // access flags 0x1
  public <init>()V
   L0
    LINENUMBER 3 L0
    ALOAD 0 //将指定的引用类型本地变量推送至栈顶
    INVOKESPECIAL java/lang/Object.<init> ()V //调用超类构造方法，实例初始化方法，私有方法
   L1
    LINENUMBER 4 L1
    ALOAD 0
    LDC "v2" //将int, float或String型常量值从常量池中推送至栈顶
    PUTFIELD core/object_create/ObjectTest.name : Ljava/lang/String; //为指定的类的实例域赋值
    RETURN //从当前方法返回void
   L2
    LOCALVARIABLE this Lcore/object_create/ObjectTest; L0 L2 0
    MAXSTACK = 2 //代表了操作数栈（Operand Stacks）深度的最大值
    MAXLOCALS = 1 //代表了局部变量表所需的存储空间
  // access flags 0x1
  public add()V
   L0 //表示一个局部变量
    LINENUMBER 6 L0 //标识变量对应行
    ICONST_M1 //将int型-1推送至栈顶
    ISTORE 1 //将栈顶int型数值存入指定本地变量
   L1
    LINENUMBER 7 L1
    ICONST_5 //将int型5推送至栈顶
    ISTORE 2
   L2
    LINENUMBER 8 L2
    BIPUSH 6  //将单字节的常量值(-128~127)推送至栈顶
    ISTORE 3
   L3
    LINENUMBER 9 L3
    BIPUSH 127
    ISTORE 4
   L4
    LINENUMBER 10 L4
    SIPUSH 150
    ISTORE 5
   L5
    LINENUMBER 11 L5
    ILOAD 1 //将指定的int型本地变量推送至栈顶
    ILOAD 2 
    IADD  //将栈顶两int型数值相加并将结果压入栈顶
    ILOAD 3
    IADD
    ILOAD 4
    IADD
    ILOAD 5
    IADD
    ISTORE 6
   L6
    LINENUMBER 12 L6
    RETURN
   L7
    LOCALVARIABLE this Lcore/object_create/ObjectTest; L0 L7 0
    LOCALVARIABLE i10 I L1 L7 1
    LOCALVARIABLE i0 I L2 L7 2
    LOCALVARIABLE i1 I L3 L7 3
    LOCALVARIABLE i2 I L4 L7 4
    LOCALVARIABLE i3 I L5 L7 5
    LOCALVARIABLE sum I L6 L7 6
    MAXSTACK = 2
    MAXLOCALS = 7
}