Program to find the repeated integer in an array

import java.util.*;

class Test {
    public static void main (String[] args) {
    Scanner sc=new Scanner(System.in);
    int n=sc.nextInt();
    int a[]=new int[n];
    for(int i=0;i<n;i++){
        a[i]=sc.nextInt();
    }
    for(int i=0;i<=n;i++){
        for(int j=i+1;j<n;j++){
            while(j<n){
                if(a[i]==a[j]){
                System.out.println(a[i]);
                     
                    }
                j++;
            }
        }
       
    }
}
}

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