Question

java的public class Username { List<User> ment; public Username() { this.ment = new ArrayList<User>

怎么引用这个类里面的List

Answer 1

package test;

import java.util.ArrayList;
import java.util.List;

public class Username {
List<User> ment;

public Username() {
this.ment = new ArrayList<User>();
}
}
----------------------------------------------------------------
package test;

import java.util.List;

public class Username_ment {
Username username = new Username();
List<User> l = username.ment;

public void do_l() {
for (int i = 0; i < l.size(); i++) {
// 做你要做的事
}
}
}

Answer 2

查一下java 修饰符
参考
http://www.cnblogs.com/snowdrop/articles/2143194.html

Answer 3

在同一个类里就可以直接引用。