提问人:Cindy_ l 提问时间:5/5/2023 最后编辑:Mark RotteveelCindy_ l 更新时间:5/8/2023 访问量:34
错误:项目无法转换为字符串 [已关闭]
error: project cannot be converted into string [closed]
问:
从 CSV 文件读取时,我正在尝试为 CSV 文件的每一行创建一个新对象。我不断收到一个错误,说:
error: incompatible types: project cannot be converted to String
Project[i] = projectOne;
我该如何解决这个问题?
while((line = br.readLine()) != null)
{
String[] lineSplit = line.split(",");
String[] Project = new String[lineSplit.length];
for(int i = 0; i < lineSplit.length; i++)
{
//Creating a new project object called projectOne
project projectOne = new project(
lineSplit[0],lineSplit[1],lineSplit[2],
lineSplit[3],lineSplit[4],lineSplit[5]);
Project[i] = projectOne;
}
System.out.println(Project[1]);
}
我检查了项目.java它是一个字符串,所以我很困惑
答:
2赞
f1sh
5/5/2023
#1
您的文件似乎每行包含一个项目。不需要那个内部循环。for
也请遵循 java 命名约定。类(如 your class)应为大写,变量(如 ur)应为小写。project
Project
如果您想将每一行转换为 a 并想收集它们,我建议您使用 :Project
List
List<Project> projects = new ArrayList<>();
while((line = br.readLine()) != null) {
String[] lineSplit = line.split(",");
Project projectOne = new Project(lineSplit[0],lineSplit[1],lineSplit[2],lineSplit[3],lineSplit[4],lineSplit[5]);
projects.add(projectOne);
}
System.out.println(projects.get(1));
评论
Project
String[]
Project
String