1,HTML source code£º
<![CDATA[
<html>
<head>
<title>How to use SortedMap</title>
</head>
<body>
<script src="jsjava.js"></script>
<script>
var h=new TreeMap();
h.put("a","b");
h.put("c","d");
h.put("b","e");
h.put("null","a");
h.put(new Integer(9),"e");
document.write(h.get("c")+"<br>");
document.write(h.get("none")+"<br>");
document.write(h.containsKey(new Integer(7))+"<br>");
var keys=h.keys();
while(keys.hasMoreElements()){
document.write(keys.nextElement()+",");
}
</script>
</body>
</html>
]]>
2,The display:
<![CDATA[
d
undefined
false
9,a,b,c,null,
]]>