3 largest number

package largestnumber;
import java.util.Scanner;
public class Check {
    public static void main(String[] args){
    int a[]=new int[7];
    int max1,max2,max3,i,j,sum=0;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter your Numbers:");

    for(i=0;i<7;i++){
    a[i]=sc.nextInt();
    }

    max1=-9999999;
    max2=-9999999;
    max3=-9999999;

    for(j=0;j<7;j++){
    if(a[j]>max1){
    max1=a[j];
    }
    }

    for(j=0;j<7;j++){
    if(a[j]>max2 && a[j]<max1){
    max2=a[j];
    }
    }

    for(j=0;j<7;j++){
    if(a[j]>max3 && a[j]<max2){
    max3=a[j];
    }
    }

    sum=max1+max2+max3;
    double avg=(double)sum/3;

    System.out.println("Largest Number 1= "+ max1);
    System.out.println("Largest Number 2= "+ max2);
    System.out.println("Largest Number 3= "+ max3);
    System.out.println("Average = "+ avg);
    }
}