Question

In JAVA Create a program with an array with the following data:

50 12 31 76 5 23 15

Use a text file (.txt created in notepad) to read the data into the array.

Write a sort method (your choice of sorting algorithm) to sort the array values values - highest to lowest. Write a method to determine the minimum value. Your program should call the sort and minimum methods. Output the sorted array and minimum value.  

Answer 1

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.*;
public class Main
{
   public static void main(String[] args) throws Exception{
   Scanner sc = new Scanner(new BufferedReader(new FileReader("sample.txt")));
   ArrayList<Integer> arr = new ArrayList<Integer>();
   while(sc.hasNextLine()) {
arr.add(Integer.parseInt(sc.nextLine()));
}
sort(arr);
minimum(arr);
   }
   static void sort(ArrayList<Integer> arr)
   {
   for(int i=0;i<=arr.size();i++)
   {
   for(int j=i+1;j<arr.size();j++)
   {
   if(arr.get(i)<arr.get(j))
   {
   int temp=arr.get(i);
   arr.set(i,arr.get(j));
   arr.set(j,temp);
   }
   }
   }
   System.out.println("sorted array :- ");
   for(int i=0;i<arr.size();i++)
   System.out.print(arr.get(i)+" ");
   }
   static void minimum(ArrayList<Integer> arr)
   {
   int min =arr.get(0);
   for(int i=1;i<arr.size();i++ )
   if(min<arr.get(i))
   min=arr.get(i);
   System.out.println("\nminimum :- "+min);
   }
  
}