在JAVA中如何取得一个变量的类型

public   class   Test15   {
public   static   void   main(String[]   args)  
{
int   i=1;
Integer   i1   =   2;
double   d   =   1.8;
long   l   =   76;
boolean   b   =   false;

System.out.println(getType(i));
System.out.println(getType(i1));
System.out.println(getType(d));
System.out.println(getType(l));
System.out.println(getType(b));
}
public   static   String   getType(Object   o){
return   o.getClass().toString();
}
public   static   String   getType(int   o){
return   "int ";
}
public   static   String   getType(byte   o){
return   "byte ";
}
public   static   String   getType(char   o){
return   "char ";
}
public   static   String   getType(double   o){
return   "double ";
}
public   static   String   getType(float   o){
return   "float ";
}
public   static   String   getType(long   o){
return   "long ";
}
public   static   String   getType(boolean   o){
return   "boolean ";
}
public   static   String   getType(short   o){
return   "short ";
}
}