1,HTML source code£º
<![CDATA[
<html>
<head>
<title>How to use Double</title>
</head>
<body>
<script src="jsjava.js"></script>
<script>
try{
var d=Double.parseDouble("99r");
document.write(d+"<br>");
}catch(e){
document.write(e.message+"<br>");
}
var f=Double.checkValid("sdf");
document.write(f);
</script>
</body>
</html>
]]>
2,The display:
The display text is:
Not a number Exception!
false