if else ladder in java

/* grade */

class country
{
public static void main(String args[])
{
String country="india" , state="ap", city="nellore";

if(country=="india")
{
System.out.println("you are in india");
}
else
if(country=="usa")
{
System.out.println("you are in usa");
}
else
if(country=="brazil")
{
System.out.println("you are in brazil");
}
}
}


output :

you are in india