java program calculates the total marks, average mark, highest mark, lowest mark

import java.util.Scanner;
public class Main
{
	public static void main(String[] args) {
		    Scanner input= new Scanner(System.in);
	    System.out.println("welcome, enter the number of subjects:");
	    int subjects_number= input.nextInt();
	    double marks[]=new double[subjects_number];
	    double totalMarks=0;
	    double highestMark=-1,lowestMark=101;
	    for(int i=0;i<subjects_number;i++)
	    {
	      System.out.println("enter mark");
	      marks[i]= input.nextDouble();
	      totalMarks=totalMarks+marks[i];
	      if(marks[i]>highestMark)
	      highestMark=marks[i];
	      
	      if(marks[i]<lowestMark)
	      lowestMark=marks[i];
	    }
	    System.out.println("total marks is "+totalMarks);
	    System.out.println("average of marks is "+(totalMarks/subjects_number));
	    System.out.println("highest mark is "+highestMark);
	    System.out.println("lowest mark is "+lowestMark);
}
}