First of all, remember to indent your code for readability.
Concept 1.
for (int i=0;i<=9;i++){
area[i]=s.next();// Use this for String Input
pincode[i]=s.nextInt();
s.nextLine();//Use this for going to next line of input
}
Concept 2.
if(search.compareTo(area[j])==0){
// compare Strings using compareTo method (which returns 0 if equal
Rest of your code and concepts are correct 🙂