How to make a singleton for retrofit 2?

Question

If there exists multiple retrofit call, how can i make a singleton of a retrofit, so that there won\'t be repeated codes within the class, thereby get rid of unnecessary cod

Answer 1

public class Singleton {
private volatile static Singleton singleton;
private Singleton(){}
public static Singleton getSingleton(){
    if (singleton == null) {
        synchronized (Singleton.class) {
            if (singleton == null) {
                singleton = new Singleton();
            }
        }
    }
    return singleton;
}