hash maps

freemarker/freemarkerFreq.html

@@ -26,3 +26,10 @@ ${(content.url)!}
 
 <!--time-->
 ${listVo.updateTime?string('yyyy-MM-dd HH:mm:ss')}
+
+<!--maps -->
+<#list testMap?keys as testKey> 
+<option value="${testKey}" >
+    ${testMap[testKey]}
+</option> 
+</#list>

java/java-freq.java

@@ -11,6 +11,7 @@ public static void main(String[] args){
     cal.set(2017, Calendar.MARCH, 16, 0, 0, 0);
     Date date = cal.getTime();
 
-    // java ArrayList swap elements
+    // url decode using java
+    String result = java.net.URLDecoder.decode(url, "UTF-8");// java ArrayList swap elements
     Collections.swap(List<?> list, int i, int j);
 }