java的Class>类型提供了多种方法获取类型的名字。这些方法的返回值区别如下：

测试代码：

1 importjava.math.BigDecimal;2

3 public classTestClassName {4 public static voidmain(5 String[] args6 ) {7 char v1 = 'C';8 byte v2 = 2;9 short v3 = 3;10 int v4 = 4;11 long v5 = 5;12 float v6 = 6;13 double v7 = 7;14 BigDecimal v8 = BigDecimal.valueOf(8);15 String v9 = "9";16 TestBean v10 = newTestBean();17

18 char[] a1 = {'A'};19 byte[] a2 = {2};20 short[] a3 = {3};21 int[] a4 = {4};22 long[] a5 = {5};23 float[] a6 = {6};24 double[] a7 = {7};25 BigDecimal[] a8 = {BigDecimal.valueOf(8)};26 String[] a9 = {"9", "10"};27 TestBean[] a10 = {new TestBean(), newTestBean()};28

29 dumpAllNames("char", char.class);30 dumpAllNames("byte", byte.class);31 dumpAllNames("short", short.class);32 dumpAllNames("int", int.class);33 dumpAllNames("long", long.class);34 dumpAllNames("float", float.class);35 dumpAllNames("double", double.class);36 dumpAllNames("BigDecimal", BigDecimal.class);37 dumpAllNames("String", String.class);38 dumpAllNames("TestBean", TestBean.class);39

40 dumpAllNames("char[]", char[].class);41 dumpAllNames("byte[]", byte[].class);42 dumpAllNames("short[]", short[].class);43 dumpAllNames("int[]", int[].class);44 dumpAllNames("long[]", long[].class);45 dumpAllNames("float[]", float[].class);46 dumpAllNames("double[]", double[].class);47 dumpAllNames("BigDecimal[]", BigDecimal[].class);48 dumpAllNames("String[]", String[].class);49 dumpAllNames("TestBean[]", TestBean[].class);50 }51

52 private static voiddumpAllNames(53 String name,54 Class>clazz55 ) {56 System.out.println(name + ".name = " +clazz.getName());57 System.out.println(name + ".simpleName = " +clazz.getSimpleName());58 System.out.println(name + ".canonicalName = " +clazz.getCanonicalName());59 System.out.println(name + ".typeName = " +clazz.getTypeName());60 }61

62 private static classTestBean {63 }64 }

运行结果：

char.name = char

char.simpleName = char

char.canonicalName = char

char.typeName = char

byte.name = byte

byte.simpleName = byte

byte.canonicalName = byte

byte.typeName = byte

short.name = short

short.simpleName = short

short.canonicalName = short

short.typeName = short

int.name = int

int.simpleName = int

int.canonicalName = int

int.typeName = int

long.name = long

long.simpleName = long

long.canonicalName = long

long.typeName = long

float.name = float

float.simpleName = float

float.canonicalName = float

float.typeName = float

double.name = double

double.simpleName = double

double.canonicalName = double

double.typeName = double

BigDecimal.name = java.math.BigDecimal

BigDecimal.simpleName = BigDecimal

BigDecimal.canonicalName = java.math.BigDecimal

BigDecimal.typeName = java.math.BigDecimal

String.name = java.lang.String

String.simpleName = String

String.canonicalName = java.lang.String

String.typeName = java.lang.String

TestBean.name = TestClassName$TestBean

TestBean.simpleName = TestBean

TestBean.canonicalName = TestClassName.TestBean

TestBean.typeName = TestClassName$TestBean

char[].name = [C

char[].simpleName = char[]

char[].canonicalName = char[]

char[].typeName = char[]

byte[].name = [B

byte[].simpleName = byte[]

byte[].canonicalName = byte[]

byte[].typeName = byte[]

short[].name = [S

short[].simpleName = short[]

short[].canonicalName = short[]

short[].typeName = short[]

int[].name = [I

int[].simpleName = int[]

int[].canonicalName = int[]

int[].typeName = int[]

long[].name = [J

long[].simpleName = long[]

long[].canonicalName = long[]

long[].typeName = long[]

float[].name = [F

float[].simpleName = float[]

float[].canonicalName = float[]

float[].typeName = float[]

double[].name = [D

double[].simpleName = double[]

double[].canonicalName = double[]

double[].typeName = double[]

BigDecimal[].name = [Ljava.math.BigDecimal;

BigDecimal[].simpleName = BigDecimal[]

BigDecimal[].canonicalName = java.math.BigDecimal[]

BigDecimal[].typeName = java.math.BigDecimal[]

String[].name = [Ljava.lang.String;

String[].simpleName = String[]

String[].canonicalName = java.lang.String[]

String[].typeName = java.lang.String[]

TestBean[].name = [LTestClassName$TestBean;

TestBean[].simpleName = TestBean[]

TestBean[].canonicalName = TestClassName.TestBean[]

TestBean[].typeName = TestClassName$TestBean[]