The following java code, which outputs false:
class Value {
int i;
}
public class EqualsMethod2 {
public static void main(String[] args) {
Value v1 = new Value();
Value v2 = new Value();
v1.i = v2.i = 100;
System.out.println(v1.equals(v2));
}
}
Why isn't the result true instead? While reading some Java documentation I've found the following answer: the default behavior of equals() is to compare handles. But aren't v1 and v2 handles?
Thank you in advance.
只是setInterval用来定期检查你需要什么
<html>
<head>
<script type="text/javascript">
var myInterval,
myColorName,
myDelay = xxx;
function onLoad(){
startTimer();
}
function startTimer(){
myInterval = setInterval(function(){
myColorName = document.forms['form1'].elements['textbox'].value;
if(myColorName.length>0){
//do what you want with your color
}
},myDelay);
}
function stopTimer(){
clearInterval(myInterval);
}
</script>
</head>
<body onload="onLoad()">
<form name="form1">
<fieldset>
<legend>Enter Color Name:</legend>
<input type="text" name="textbox"/>
</fieldset>
</form>
</body>
</html>
不要尝试定期获取值，因为在输入中键入数据时，您将无法立即获取数据。
尝试<input type=¨text¨ name=¨some¨ onkeyup=¨typed(this.value)¨/>
function typed(value)
{
console.log(value);
}