Style 1     
// simplest one to start with

package untitled1;

import java.io.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Application1 
{
  public static void main(String args[])
       {
        DECLARE ALL VARIABLES
        WRITE ALL JAVA COMMANDS
        System.exit(0); 
       } 
}

Style 2
// introduction to using functions also
// includes try - catch blocks to give you an
// idea of the logic flow for your first program
// Pay attention to the brackets and the order
// I used two arrays as an example but you will
// have more

package untitled1;

import java.io.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Application1 
{
   public static void main(String args[])
    {
         int scores[][] = new int[10][5];
         float avg[] = new float[10];
                 
         DECLARE VARIABLES or arrays only known in MAIN
         MUST be passed to functions if the functions
         are to access them
         try
         {
           // open files
           do
             {
               // read record
               // break it into logical pieces
               // store it in arrays
              }  while (  etc )
                call function1   ( scores, avg );
                // sort all data based on avg arfray
                call function2  (   etc  ) // printing
         }    
         catch
          {
           // output error condition
          }        
         System.exit(0);
    }   // end main method

    function1  ( int scores[][], float avg[] )  
    {
       code to comput averages etc
    } 
    function2  // all arrays must be passed
    {
       code to do output
    }
   
}  // end class

Style 3
// creating an oblect of a class and
// placing all code in the constructor

package untitled1;

import java.io.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Application1 
{
     public Application1()  // construstor method for class
       {
          DECLARE ALL VARIABLES
          WRITE SOURCE CODE
       }

}

Style 4

// best style for OOP using functions (methods )  
// advanced 314 students

package untitled1;

import java.io.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Application1 
{
   DECLARE GLOBAL VARIABLES  calles INSTANCE VARIABLES     

      public Application1()  // construstor method for class
       {
          Declare all arrays etc
          start the logic of your program
          and call the methods (functions) below when needed 

      
       }
      public method1
       {
          code
       } 
      public method2
       {
          code
       } 
      public method3
       {
          code
       }
      ETC 

}