Find the third max from input four number

import java.io.*;
class Max
{
 public static void main(String args[])
 {
  int a,b,c,d,max1=0,max2=0,max3=0,max4=0;
  Console con = System.console();
  System.out.print("enter value of a");
  a=Integer.parseInt(con.readLine());
  System.out.print("enter value of b");
  b=Integer.parseInt(con.readLine());
  System.out.print("enter value of c");
  c=Integer.parseInt(con.readLine());
  System.out.print("enter value of d");
  d=Integer.parseInt(con.readLine());
  if(a>b)
  {
   max1=a;
   max2=b;
  }
  else
  { max1=b;
   max2=a;
  }
  if(c>max1)
  {
   max3=max2;
   max2=max1;
   max1=c;
  }
  else if(c>max2)
  {
   max3=max2;
   max2=c;
  }
  else
   max3=c;
  if(d>max1)
  {
   max4=max3;
   max3=max2;
   max2=max1;
   max1=d;
  }
  else if(d>max2)
  {
   max4=max3;
   max3=max2;
   max2=d;
  }
  else if(d>max3)
  {
   max4=max3;
   max3=d;
  }
  else
   max4=d;
 System.out.println("max1 ="+max1+"\n max2 ="+max2+"\n max3 ="+max3+"\n max4 ="+max4);
 }
}