jvm 变量 内存分配

public class T {

	// 常量池中分配 String final
	private String a = "aa";

	// 常量池中分配
	final int ee = 22;
	// 堆中分配
	int ff = 20;
	// 超过一定的范围 在常量池中
	int ff2 = 200000;
	
	
	// 堆中分配
	Integer i = 4;
	// 超过一定的范围 在常量池中
	Integer i2 = 444444;
	// 堆中分配
	final Integer ii = 544;
	// 超过一定的范围 在常量池中
	final Integer ii2 = 55555;

	public void t() {
		// 常量池中分配 String final
		String b = "bb";
		// 常量池中分配
		final String c = "cc";
		// 栈中分配
		int f = 1;
		// 超过一定的范围 在常量池中
		int f1 = 111111;
		// 栈中分配
		final int f2 = 33;
		// 超过一定的范围 在常量池中
		final int f3 = 33333;
	}

}

    

const #2 = Asciz        T;
const #3 = class        #4;     //  java/lang/Object
const #4 = Asciz        java/lang/Object;
const #5 = Asciz        a;
const #6 = Asciz        Ljava/lang/String;;
const #7 = Asciz        ee;
const #8 = Asciz        I;
const #9 = Asciz        ConstantValue;
const #10 = int 22;
const #11 = Asciz       ff;
const #12 = Asciz       ff2;
const #13 = Asciz       i;
const #14 = Asciz       Ljava/lang/Integer;;
const #15 = Asciz       i2;
const #16 = Asciz       ii;
const #17 = Asciz       ii2;
const #18 = Asciz       <init>;
const #19 = Asciz       ()V;
const #20 = Asciz       Code;
const #21 = Method      #3.#22; //  java/lang/Object."<init>":()V
const #22 = NameAndType #18:#19;//  "<init>":()V
const #23 = String      #24;    //  aa
const #24 = Asciz       aa;
const #25 = Field       #1.#26; //  T.a:Ljava/lang/String;
const #26 = NameAndType #5:#6;//  a:Ljava/lang/String;
const #27 = Field       #1.#28; //  T.ee:I
const #28 = NameAndType #7:#8;//  ee:I
const #29 = Field       #1.#30; //  T.ff:I
const #30 = NameAndType #11:#8;//  ff:I
const #31 = int 200000;
const #32 = Field       #1.#33; //  T.ff2:I
const #33 = NameAndType #12:#8;//  ff2:I
const #34 = Method      #35.#37;        //  java/lang/Integer.valueOf:(I)L
ang/Integer;
const #35 = class       #36;    //  java/lang/Integer
const #36 = Asciz       java/lang/Integer;
const #37 = NameAndType #38:#39;//  valueOf:(I)Ljava/lang/Integer;
const #38 = Asciz       valueOf;
const #39 = Asciz       (I)Ljava/lang/Integer;;
const #40 = Field       #1.#41; //  T.i:Ljava/lang/Integer;
const #41 = NameAndType #13:#14;//  i:Ljava/lang/Integer;
const #42 = int 444444;
const #43 = Field       #1.#44; //  T.i2:Ljava/lang/Integer;
const #44 = NameAndType #15:#14;//  i2:Ljava/lang/Integer;
const #45 = Field       #1.#46; //  T.ii:Ljava/lang/Integer;
const #46 = NameAndType #16:#14;//  ii:Ljava/lang/Integer;
const #47 = int 55555;
const #48 = Field       #1.#49; //  T.ii2:Ljava/lang/Integer;
const #49 = NameAndType #17:#14;//  ii2:Ljava/lang/Integer;
const #50 = Asciz       LineNumberTable;
const #51 = Asciz       LocalVariableTable;
const #52 = Asciz       this;
const #53 = Asciz       LT;;
const #54 = Asciz       t;
const #55 = String      #56;    //  bb
const #56 = Asciz       bb;
const #57 = String      #58;    //  cc
const #58 = Asciz       cc;
const #59 = int 111111;
const #60 = int 33333;
const #61 = Asciz       b;
const #62 = Asciz       c;
const #63 = Asciz       f;
const #64 = Asciz       f1;
const #65 = Asciz       f2;
const #66 = Asciz       f3;
const #67 = Asciz       SourceFile;
const #68 = Asciz       T.java;

{
final int ee;
  Constant value: int 22
int ff;

int ff2;

java.lang.Integer i;

java.lang.Integer i2;

final java.lang.Integer ii;

final java.lang.Integer ii2;

public T();
  Code:
   Stack=2, Locals=1, Args_size=1
   0:   aload_0
   1:   invokespecial   #21; //Method java/lang/Object."<init>":()V
   4:   aload_0
   5:   ldc     #23; //String aa
   7:   putfield        #25; //Field a:Ljava/lang/String;
   10:  aload_0
   11:  bipush  22
   13:  putfield        #27; //Field ee:I
   16:  aload_0
   17:  bipush  20
   19:  putfield        #29; //Field ff:I
   22:  aload_0
   23:  ldc     #31; //int 200000
   25:  putfield        #32; //Field ff2:I
   28:  aload_0
   29:  iconst_4
   30:  invokestatic    #34; //Method java/lang/Integer.valueOf:(I)Ljava/l
teger;
   33:  putfield        #40; //Field i:Ljava/lang/Integer;
   36:  aload_0
   37:  ldc     #42; //int 444444
   39:  invokestatic    #34; //Method java/lang/Integer.valueOf:(I)Ljava/l
teger;
   42:  putfield        #43; //Field i2:Ljava/lang/Integer;
   45:  aload_0
   46:  sipush  544
   49:  invokestatic    #34; //Method java/lang/Integer.valueOf:(I)Ljava/l
teger;
   52:  putfield        #45; //Field ii:Ljava/lang/Integer;
   55:  aload_0
   56:  ldc     #47; //int 55555
   58:  invokestatic    #34; //Method java/lang/Integer.valueOf:(I)Ljava/l
teger;
   61:  putfield        #48; //Field ii2:Ljava/lang/Integer;
   64:  return
  LineNumberTable:
   line 1: 0
   line 4: 4
   line 7: 10
   line 9: 16
   line 11: 22
   line 15: 28
   line 17: 36
   line 19: 45
   line 22: 55
   line 1: 64

  LocalVariableTable:
   Start  Length  Slot  Name   Signature
   0      65      0    this       LT;


public void t();
  Code:
   Stack=1, Locals=7, Args_size=1
   0:   ldc     #55; //String bb
   2:   astore_1
   3:   ldc     #57; //String cc
   5:   astore_2
   6:   iconst_1
   7:   istore_3
   8:   ldc     #59; //int 111111
   10:  istore  4
   12:  bipush  33
   14:  istore  5
   16:  ldc     #60; //int 33333
   18:  istore  6
   20:  return
  LineNumberTable:
   line 26: 0
   line 28: 3
   line 30: 6
   line 32: 8
   line 34: 12
   line 36: 16
   line 37: 20

  LocalVariableTable:
   Start  Length  Slot  Name   Signature
   0      21      0    this       LT;
   3      18      1    b       Ljava/lang/String;
   6      15      2    c       Ljava/lang/String;
   8      13      3    f       I
   12      9      4    f1       I
   16      5      5    f2       I
   20      1      6    f3       I


}