The type HashSet is not generic; it cannot be parameterized with arguments 错误 解决方法 一开始我以为是我的包导错误 (import java.util.Set;)后来发现不是 然后发现是 我的类名和你要导入的包名同名了... 关于javaList错误 比如下图那个List报错 将鼠标移上去发现下列提示The
第一步: 修改Window-〉Preferences->Java ->Compiler->JDK Compliance中的compiler compliance level,把它设为5.0或者以上。 第二步: 修改Window-〉Preferences->Java ->Installed JREs,如果是1.4或者以下的,你最好就自己添加一个1.5或者以上的JRE。 方法:点击Installed JREs里面的浏览(Browse...)然后找到自己安装的...
类名改成别的，就可以了，你new ArrayList() 系统会认为你在new 当前类，而你写的当前类并没有实现List接口 你自己的类名也叫ArrayLIst,你new ArrayList其实是创建你自己定义的这个类，所以会报错。import java.util.List;另外ArrayList这个类名改一下不。。。类名换下，ArrayList不能用
The type List is not generic; it cannot be parameterized with arguments <User> 今天写一个list 报了这个莫名其妙的警告 List<User> list = userMapper.fingUserByName("张"); 发现是包导错了 import java.awt.List; 换成util包就好了 import java.util.List; 做了很久的 android 了 突然对这个awt 包...
[translate] a远走高飞长比翼[translate] a但还是忍住了 But bore[translate] aThe type List is not generic; it cannot be parameterized with arguments 类型名单不是普通的; 它不可能参数化与论据[translate]
你需要把public ArrayList<T> getAll() 中的T换成具体的类名，例如 public ArrayList<String> getAll()
a企业同事 The enterprise works together [translate] a我的偶像是 My idol is [translate] aThe type HTMLDocument.Iterator is not generic; it cannot be parameterized with arguments 类型HTMLDocument.Iterator不是普通的; 它不可能参数化与论据 [translate] ...
Since theAcceptfunction must be virtual, it cannot be a template—it must hard-code all the knowledge about visitation, the return type, and the number of arguments. As a result, aprintmethod implemented as a visitor for theShapehierarchy above must return anintwhile it might be better to ...
But hey, print is able to take in a value and do something with it, how do we write a function like that? The answer is: parameters. Parameterized functions A function can take zero or more parameters, which are input values. Let's modify our sayHello function to be able to say ...
Calling Start-Process with arguments with spaces fails Calling the same function from within the function (calling itself) Can a file be too large to be read with Get-Content ? Can a webpage be opened in a browser by a PowerShell command, but leave the PowerShell console window as the ...