package instance.enumStyle;
public class InstanceEnumStyle {
private InstanceEnumStyle() {}
public static InstanceEnumStyle getInstance() {
return Singleton.INSTANCE.getSingle();
}
private static enum Singleton {
INSTANCE;
private InstanceEnumStyle instance;
private Singleton () {
instance = new InstanceEnumStyle();
}
public InstanceEnumStyle getSingle() {
return instance;
}
}
public static void main(String[] args) {
for (int i = 0; i < 3; i++) {
new Thread(new Runnable() {
@Override
public void run() {
InstanceEnumStyle instanceEnumStyle = InstanceEnumStyle.getInstance();
System.out.println("hashCode:" + instanceEnumStyle.hashCode());
}
}).start();
}
}
}
測試結果：
hashCode:1575346308
hashCode:1575346308
hashCode:1575346308
更多内容：
https://www.cnblogs.com/linjiaxin/p/7923135.html