import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
public class String_char
{
public static void main(String args[]) {
List<String>a=new ArrayList<String>();
a.add("First");
a.add("Second");
String str1="hsuaaggcdg";
System.out.println(str1.toString());;
a.add("Thrid");
HashSet<String>b=new HashSet<String>();
b.add("a");
System.out.println(b);
System.out.println(a);
List<Items>c=new ArrayList<Items>();
c.add(new CD("张杰", "娜扎"));
c.add(new CD("张杰","刘杰"));
System.out.println(c.toString());
}
}
public class CD extends Items
{
private String name;
private String artist;
public CD(String name, String artist)
{
super();
this.name = name;
this.artist = artist;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public String getArtist()
{
return artist;
}
public void setArtist(String artist)
{
this.artist = artist;
}
@Override
public String toString()
{
return "CD [name=" + name + ", artist=" + artist + "]";
}
}
public class Items
{
private String name;
private String artist;
public Items(String name, String artist)
{
super();
this.name = name;
this.artist = artist;
}
public Items() {
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public String getArtist()
{
return artist;
}
public void setArtist(String artist)
{
this.artist = artist;
}
}