CitrusClient / app / src / main / java / com / example / citrusclient / Citrus.java

package com.example.citrusclient;

import android.app.Application;

public class Citrus extends Application {

    //データ保存
    private String token;

    //getter
    private String getToken(){
        return token;
    }

    //setter
    private void setToken(String token){
        this.token=token;
    }
}