1.单例模式
public class Sington{
private static Sington s = null;
private Sington(){}
public static Sington getInstance(){
if(s==null){
synchronized(Sington.class){
if(s==null){
s = new Sington();
}
}
}
}
return s;
}
1.单例模式
public class Sington{
private static Sington s = null;
private Sington(){}
public static Sington getInstance(){
if(s==null){
synchronized(Sington.class){
if(s==null){
s = new Sington();
}
}
}
}
return s;
}