这是我的代码:
HashMap<String, String> inst1 = new HashMap(instructorIO.getInstructors());
instListModel = new DefaultListModel<String>(inst1.values());
我收到错误消息:
DepartmentProject.java:69: error: constructor DefaultListModel in class DefaultListModel<E> cannot be applied to given types;
required: no arguments
found: Collection<String>
reason: actual and formal argument lists differ in length
where E is a type-variable:
E extends Object declared in class DefaultListModel
谁能帮我这个?
最佳答案
DefaultListModel
只有一个不带参数的构造函数;您不能将所需的值作为构造函数arg传递。
您将必须创建DefaultListModel,然后在其后进行填充,例如:
HashMap<String, String> inst1 = new HashMap(instructorIO.getInstructors());
instListModel = new DefaultListModel<String>();
for (String value : inst1.values())
{
instListModel.addElement(value);
}
关于java - 将HashMap转换为DefaultListModel,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9474479/