package NEW_DATE_SEQUENCE_PACKAGE;
import java.util.*;
public class J_8_31_6_map
{
public static void main(String[] args)
{
Map<String,Employee_61> staff=new HashMap<>();
staff.put("1", new Employee_61("well"));
staff.put("2", new Employee_61("hello"));
staff.put("3", new Employee_61("good"));
staff.put("4", new Employee_61("thanks"));
Set<String> kys=staff.keySet();
Collection<Employee_61> em=staff.values();
Set<Map.Entry<String,Employee_61>> vie=staff.entrySet();
for(String a:kys)
{
System.out.println(a);
}
for(Employee_61 b:em)
{
System.out.println(b.getName());
}
for(Map.Entry<String,Employee_61> v:vie)
{
System.out.println(v);
}
staff.forEach((a,b)->System.out.println("a= "+a+" b= "+b));
run:
1
2
3
4
well
hello
good
thanks
1=NEW_DATE_SEQUENCE_PACKAGE.Employee_61@677327b6
2=NEW_DATE_SEQUENCE_PACKAGE.Employee_61@14ae5a5
3=NEW_DATE_SEQUENCE_PACKAGE.Employee_61@7f31245a
4=NEW_DATE_SEQUENCE_PACKAGE.Employee_61@6d6f6e28
a= 1 b= NEW_DATE_SEQUENCE_PACKAGE.Employee_61@677327b6
a= 2 b= NEW_DATE_SEQUENCE_PACKAGE.Employee_61@14ae5a5
a= 3 b= NEW_DATE_SEQUENCE_PACKAGE.Employee_61@7f31245a
a= 4 b= NEW_DATE_SEQUENCE_PACKAGE.Employee_61@6d6f6e28
成功构建 (总时间: 0 秒)