如何通过添加方法在我的集合中添加一个对象? [英] How to add an object in my collection by only using add method?
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问题描述
我必须创建一个名称,地址,年龄的集合。如何在java中创建一个集合对象。
我的代码片段如下:
public class DataCollection implements java .io.Serializable {
私有字符串名称;
private String地址;
private int Age;
}
我有getter和setter方法...
在主方法中,如何创建一个集合?
.add(new DataCollection());有人可以帮我吗? h2_lin>解决方案
public class DataCollection implements java.io.Serializable {
private String Name;
private String地址;
private int Age;
public DataCollection(String name,String address,int age){
this.Name = name;
this.Address = address;
this.Age = age;
}
}
之后创建 DataCollection
objects:
DataCollection d1 = new DataCollection(nik,10/5 cross,20 ); //创建List集合
现在将对象放在集合中:
List< DataCollection> list = new LinkedList< DataCollection>();
list.add(d1);
您可以像下面这样迭代:
List< DataCollection> list = new LinkedList< DataCollection>();
for(DataCollection d:list){
System.out.println(d);
}
I have to create a collection of Name,Address,Age.How do I create this as a collection object in java.
My snippet is as follows:
public class DataCollection implements java.io.Serializable{
private String Name;
private String Address;
private int Age;
}
And I have the getter and setter methods...
In the main method, how do I create this as a collection??
list.add(new DataCollection(??????) );
Can someone please help me on this?
解决方案 public class DataCollection implements java.io.Serializable{
private String Name;
private String Address;
private int Age;
public DataCollection(String name, String address, int age){
this.Name=name;
this.Address=address;
this.Age=age;
}
}
After that create DataCollection
objects:
DataCollection d1 = new DataCollection("nik", "10/5 cross", 20);//creation of List collection
Now put the object inside a collection:
List<DataCollection> list = new LinkedList<DataCollection>();
list.add(d1);
You can iterate like below:
List<DataCollection> list=new LinkedList<DataCollection>();
for(DataCollection d : list){
System.out.println(d);
}
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