int i = 5;

0: bipush      5
2: istore_0

LocalVariableTable:Start  Length  Slot  Name   Signature0      1      1     i         I

ClassFile {u4 magic;u2 minor_version;u2 major_version;u2 constant_pool_count;cp_info contant_pool[constant_pool_count – 1];u2 access_flags;u2 this_class;u2 super_class;u2 interfaces_count;u2 interfaces[interfaces_count];u2 fields_count;field_info fields[fields_count];u2 methods_count;method_info methods[methods_count];u2 attributes_count;attribute_info attributes[attributes_count];
}

public class SimpleClass {public int simpleField = 100;}

public int simpleField;Signature: Iflags: ACC_PUBLIC

public SimpleClass();Signature: ()Vflags: ACC_PUBLICCode:stack=2, locals=1, args_size=10: aload_01: invokespecial #1                  // Method java/lang/Object."<init>":()V4: aload_05: bipush        1007: putfield      #2                  // Field simpleField:I10: return

Constant pool:#1 = Methodref          #4.#16         //  java/lang/Object."<init>":()V#2 = Fieldref           #3.#17         //  SimpleClass.simpleField:I#3 = Class              #13            //  SimpleClass#4 = Class              #19            //  java/lang/Object#5 = Utf8               simpleField#6 = Utf8               I#7 = Utf8               <init>#8 = Utf8               ()V#9 = Utf8               Code#10 = Utf8               LineNumberTable#11 = Utf8               LocalVariableTable#12 = Utf8               this#13 = Utf8               SimpleClass#14 = Utf8               SourceFile#15 = Utf8               SimpleClass.java#16 = NameAndType        #7:#8          //  "<init>":()V#17 = NameAndType        #5:#6          //  simpleField:I#18 = Utf8               LSimpleClass;#19 = Utf8               java/lang/Object

public class SimpleClass {public final int simpleField = 100;}

public static final int simpleField = 100;Signature: Iflags: ACC_PUBLIC, ACC_FINALConstantValue: int 100

4: aload_0
5: bipush        100
7: putfield      #2                  // Field simpleField:I

public static int simpleField;Signature: Iflags: ACC_PUBLIC, ACC_STATIC

static {};Signature: ()Vflags: ACC_STATICCode:stack=1, locals=0, args_size=00: bipush         1002: putstatic      #2                  // Field simpleField:I5: return