find first repeating letter in a string

print first repeated element

1. public class Array2 {
2. 
   
3. public static void main(String[] args) {
4. /*String s="ffaghglklklh";
5. Outer:for(int i=0;i<s.length();i++){
6. Innter: for(int j=i+1;j<s.length();j++){
7. if(s.charAt(i)==s.charAt(j)){
8. System.out.println(s.charAt(i));
9. break Outer;
10. }
11. }
12. }*/
13. int[] arr={1,2,3,4,5,0,0,1,3};
14. Outer:for(int i=0;i<arr.length;i++){
15. Innter: for(int j=i+1;j<arr.length;j++){
16. if(arr[i]==arr[j]){
17. System.out.println(arr[i]);
18. break Outer;
19. }
20. }
21. }
22. }
23. 
    
24. }