我有一个javascript函数,点击按钮改变导航栏的颜色.我使用了验证器,它没有返回任何错误.我在两个浏览器上都使用了验证器.这是代码的一部分,任何建议将不胜感激.
<body class ="backgroundTwo">
<h1 class ="centered sansSerif background" >Hello World!</h1>
<div>
<ul class ="center">
<li class ="center"><a id="demo" class ="center" href="about.html" >About This Site</a></li>
<li class ="center"><a id ="demo2" class="center" href="current.html">Current Work</a></li>
<li class ="center"><a id ="demo3" class="center" href="http://www.dallascowboys.com/">Cowboys</a><li>
</ul>
</div>
<h1 class = "centered" > <img src ="image.jpg" alt = "Cowboys" style="width:304px;height:228px;"></h1>
<p class = "centered sansSerifTwo" >This is lrodrig6's CSC412 WebSite Project</p>
<div class ="wrapper">
<button class="button" onclick="colorFunction()">click me</button>
</div>
<script>
function colorFunction(){
var color3 = document.getElementById("demo").style.backgroundColor; …我让我的Fraction程序运行顺利,但NetBeans IDE告诉我以下内容if是多余的:
public boolean equals(Object other)
{
Fraction bool = (Fraction) other;
if(this.numerator == bool.numerator && this.denominator == bool.denominator)
{
return true;
}
else return false;
}
上面的代码编译/运行完美并传递了所有测试用例,但NetBeans的冗余标志真的让我感到烦恼.我添加reduceToLowestTerms()到我的代码,标志消失,但我已经reduceToLowestTerms()在我的构造函数中.这就是非冗余代码(根据NetBeans)的样子:
public boolean equals(Object other)
{
Fraction bool = (Fraction) other;
if(this.numerator == bool.numerator && this.denominator == bool.denominator)
{
bool.reduceToLowestTerms();
this.reduceToLowestTerms();
return true;
}
else return false;
}
任何建议将不胜感激