一目了然解释getName()、getCanonicalName()和getSimpleName()的异同

（转载）http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667

对于一般的类：
getName()和getCanonicalName()返回结果是一样的，都包括了包名
getSimpleName()只有类名，没有包名

现在来比较getName()和getCanonicalName()的区别
对于数组：比如int[]
getName()返回的是：[I
getCanonicalName()返回的是：int[]

对于内部类：
getName()返回的是：com.getname.pkg.Main$Demo1$Demo2
getCanonicalName()返回的是：com.getname.pkg.Main.Demo1.Demo2

程序结果：

-----三种方式获取普通类的名字-----
 getName()方法：com.getname.pkg.Main
getCanonicalName()方法： com.getname.pkg.Main
getSimpleName()方法： Main

-----对于数组 int[]-----
 getName()方法：[I
getCanonicalName()方法： int[]

-----对于内部类-----
 getName()方法：com.getname.pkg.Main$Demo1$Demo2
getCanonicalName()方法： com.getname.pkg.Main.Demo1.Demo2

代码：

<a target=_blank id="L1" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L1" rel="#L1" style="color: rgb(102, 102, 102); text-decoration: none;"> 1</a> <a target=_blank id="L2" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L2" rel="#L2" style="color: rgb(102, 102, 102); text-decoration: none;"> 2</a> <a target=_blank id="L3" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L3" rel="#L3" style="color: rgb(102, 102, 102); text-decoration: none;"> 3</a> <a target=_blank id="L4" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L4" rel="#L4" style="color: rgb(102, 102, 102); text-decoration: none;"> 4</a> <a target=_blank id="L5" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L5" rel="#L5" style="color: rgb(102, 102, 102); text-decoration: none;"> 5</a> <a target=_blank id="L6" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L6" rel="#L6" style="color: rgb(102, 102, 102); text-decoration: none;"> 6</a> <a target=_blank id="L7" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L7" rel="#L7" style="color: rgb(102, 102, 102); text-decoration: none;"> 7</a> <a target=_blank id="L8" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L8" rel="#L8" style="color: rgb(102, 102, 102); text-decoration: none;"> 8</a> <a target=_blank id="L9" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L9" rel="#L9" style="color: rgb(102, 102, 102); text-decoration: none;"> 9</a> <a target=_blank id="L10" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L10" rel="#L10" style="color: rgb(102, 102, 102); text-decoration: none;"> 10</a> <a target=_blank id="L11" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L11" rel="#L11" style="color: rgb(102, 102, 102); text-decoration: none;"> 11</a> <a target=_blank id="L12" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L12" rel="#L12" style="color: rgb(102, 102, 102); text-decoration: none;"> 12</a> <a target=_blank id="L13" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L13" rel="#L13" style="color: rgb(102, 102, 102); text-decoration: none;"> 13</a> <a target=_blank id="L14" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L14" rel="#L14" style="color: rgb(102, 102, 102); text-decoration: none;"> 14</a> <a target=_blank id="L15" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L15" rel="#L15" style="color: rgb(102, 102, 102); text-decoration: none;"> 15</a> <a target=_blank id="L16" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L16" rel="#L16" style="color: rgb(102, 102, 102); text-decoration: none;"> 16</a> <a target=_blank id="L17" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L17" rel="#L17" style="color: rgb(102, 102, 102); text-decoration: none;"> 17</a> <a target=_blank id="L18" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L18" rel="#L18" style="color: rgb(102, 102, 102); text-decoration: none;"> 18</a> <a target=_blank id="L19" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L19" rel="#L19" style="color: rgb(102, 102, 102); text-decoration: none;"> 19</a> <a target=_blank id="L20" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L20" rel="#L20" style="color: rgb(102, 102, 102); text-decoration: none;"> 20</a> <a target=_blank id="L21" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L21" rel="#L21" style="color: rgb(102, 102, 102); text-decoration: none;"> 21</a> <a target=_blank id="L22" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L22" rel="#L22" style="color: rgb(102, 102, 102); text-decoration: none;"> 22</a> <a target=_blank id="L23" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L23" rel="#L23" style="color: rgb(102, 102, 102); text-decoration: none;"> 23</a> <a target=_blank id="L24" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L24" rel="#L24" style="color: rgb(102, 102, 102); text-decoration: none;"> 24</a> <a target=_blank id="L25" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L25" rel="#L25" style="color: rgb(102, 102, 102); text-decoration: none;"> 25</a> <a target=_blank id="L26" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L26" rel="#L26" style="color: rgb(102, 102, 102); text-decoration: none;"> 26</a> <a target=_blank id="L27" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L27" rel="#L27" style="color: rgb(102, 102, 102); text-decoration: none;"> 27</a> <a target=_blank id="L28" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L28" rel="#L28" style="color: rgb(102, 102, 102); text-decoration: none;"> 28</a> <a target=_blank id="L29" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L29" rel="#L29" style="color: rgb(102, 102, 102); text-decoration: none;"> 29</a> <a target=_blank id="L30" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L30" rel="#L30" style="color: rgb(102, 102, 102); text-decoration: none;"> 30</a> <a target=_blank id="L31" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L31" rel="#L31" style="color: rgb(102, 102, 102); text-decoration: none;"> 31</a> <a target=_blank id="L32" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L32" rel="#L32" style="color: rgb(102, 102, 102); text-decoration: none;"> 32</a> <a target=_blank id="L33" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L33" rel="#L33" style="color: rgb(102, 102, 102); text-decoration: none;"> 33</a> <a target=_blank id="L34" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L34" rel="#L34" style="color: rgb(102, 102, 102); text-decoration: none;"> 34</a> <a target=_blank id="L35" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L35" rel="#L35" style="color: rgb(102, 102, 102); text-decoration: none;"> 35</a> <a target=_blank id="L36" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L36" rel="#L36" style="color: rgb(102, 102, 102); text-decoration: none;"> 36</a> <a target=_blank id="L37" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L37" rel="#L37" style="color: rgb(102, 102, 102); text-decoration: none;"> 37</a> <a target=_blank id="L38" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L38" rel="#L38" style="color: rgb(102, 102, 102); text-decoration: none;"> 38</a> <a target=_blank id="L39" href="http://46aae4d1e2371e4aa769798941cef698.devproxy.yunshipei.com/u012882327/article/details/48650667#L39" rel="#L39" style="color: rgb(102, 102, 102); text-decoration: none;"> 39</a>

package com . getname . pkg ; public class Main { public class Demo1 { class Demo2 { } } public static void main ( String [] args ) { /* 三种方式获取普通类Main的名字 */ System . out . println ( "-----三种方式获取普通类的名字-----" ); String name = Main . class . getName (); System . out . println ( "\t" + "getName()方法：" + name ); String canonicalname = Main . class . getCanonicalName (); System . out . println ( "getCanonicalName()方法：" + "\t" + canonicalname ); String simplename = Main . class . getSimpleName (); System . out . println ( "getSimpleName()方法：" + "\t" + simplename ); /* getName()和getCanonicalName()获取数组名比较 */ int [] aaa = { 1 , 2 , 3 }; System . out . println ( "\r\n" + "-----对于数组 int[]-----" ); name = aaa . getClass (). getName (); System . out . println ( "\t" + "getName()方法：" + name ); canonicalname = aaa . getClass (). getCanonicalName (); System . out . println ( "getCanonicalName()方法：" + "\t" + canonicalname ); /* getName()和getCanonicalName()获取内部类名比较 */ System . out . println ( "\r\n" + "-----对于内部类-----" ); name = Demo1 . Demo2 . class . getName (); System . out . println ( "\t" + "getName()方法：" + name ); canonicalname = Demo1 . Demo2 . class . getCanonicalName (); System . out . println ( "getCanonicalName()方法：" + "\t" + canonicalname ); } }

 来自CODE的代码片

getNameDemo.java