public interface SharedPreferences android.content.SharedPreferences Class Overview Interface for accessing and modifying preference data returned by getSharedPreferences(String, int). 1、调用SharedPreferences对象的edit()方法获得SharedPreferences.Editor对象…
public abstract classHttpURLConnection extends URLConnectionjava.lang.Object ↳java.net.URLConnection ↳java.net.HttpURLConnection 1、获取HttpURLConnection实例Protected ConstructorsHttpURLConnection(URL url)Constructs a new HttpURLConnection instance …
方法名和参数(即,方法签名)唯一标识某个方法:如, public void add(int a,int b){
}
//这两个方法的方法签名一样,是不能在同一.java里的,编译通不过
public int add(int a,intb){
return a b;
…