Program for greatest of four numbers in java

Program is created using Switch-case and if else both. Switch case can be easily removed from this program.


import java.util.*;
public class Switchcase
{
    public static void main (String args[])
    {
        Scanner sc = new Scanner (System.in);
    System.out.println("please enter value of a");
    int a = sc.nextInt();
     System.out.println("please enter value of b");
    int b = sc.nextInt();
     System.out.println("please enter value of c");
    int c = sc.nextInt();
     System.out.println("please enter value of d");
    int d = sc.nextInt();
  int e=1;
  switch(1)
  {
      case 1:
          if (a>b&&a>c&&a>d)
          {
               
              System.out.println("Number a is greater than all");
          }
    else
     {
      if(b>a&&b>c&&b>d)
     {
          System.out.println("Number b is greater than all");
      }
       else
      {
      if(c>a&&c>b&&c>d)
      {
        System.out.println("Number c is greater than all");
      }
      else
      {
          if(d>a&&d>b&&d>c)
          {
              System.out.println("Number d is greater than all");
          }
            else
          {
                System.out.println("All numbers are equal");
      }
     }
    }
   }
  }
 }
}