Java原始类型转换

要获取	获取对象	示例
Int	Integer	i=myInt.intValue();
Int	String	i = Integer.parseInt(s);
Integer	String	myInt = new Integer(s);
Integer	Object	myInt = (Integer)obj;
Object	Integer	obj=myInt;//by subclass substitution rule
Object	String	obj = s;//by subclass bustitution rule
String	int	s = Integer.toSting(i);
String	Integer	s = myInt.toString();
String	Object	s= (String）obj;