Need Help with Example

[Dr_Death]

My first try at creating a small class with lots of explanations. This is for people in my Comp Sci class, so any feed back is appreciated. Here is the code and also a zip with the actual project:

/*This program is an example of how to use the different type of for loops using an array of type int
*if comment starts with a !! then it is extra information that is not necessary for*
*the completion of the program
*/

public class index {
	
	public static void main (String [] args){
		
		int[] a = new int[5]; //created an array with the ability to hold 5 integers
		                      /*!! this array can also be created by putting the brackets after
							  *the variable name as such:
							  *int a[] = new int[]; 
							  */

		System.out.println("First array :: ");
		
		for (int i = 0; i < a.length; i++){  
			a[i] =(int) (Math.random()*20);      //This creates a random number between 1 and 20
			System.out.print(" " + a[i]);        //!! The Math.random method needs to be casted to (int) because, by default, it is supposed to return a double, and we need and int
		}	                                     //!! It needs to be multiplied by 20 because this class also, by default, only returns a number between 0 and 
			
		printOddAndEven(a);                      //What is happening here is that I have called a method named printOddAndEven and given it 1 parameters (a)
		                                         //This method is create below, it is not a default java method
	}
	
	//REMEMBER TO CREATE OTHER METHODS OUTSIDE OF MAIN CLASS
	
	
	/* 
	*public means it can be accessed by other classes, alternatively private means that it can only be used in this class 
	*static means that i can call this method without creating an object. This is why you can use Math.random() without creating a Math object 
	*void means it doesn't return anything, it's just printing something out
	*printOddAndEven is the name that we gave in the main class
	*(int c[]) is the parameter; remember that the variable type must match the variable type we gave it in the main method, i.e a must be an int[]
	*/
	//This class is going to check the 2 arrays and see if there are any matches and print them out
	private static void printOddAndEven(int c[]){ 
		int count=0,odds=0, evens=0, numsEven[]= new int[c.length], numsOdds[] = new int[c.length];	 //!!You can create an int and an int[] in the same line
		String numsOddsPrint = new String("[ ");		 // Creating a String to put the array into !! or else when you try to print the array you would end up with
		String numsEvenPrint = new String("[ ");         // something like [I@76cc518c which is the hexadecimal location of your array in the memory of the computer...
		
		for(int i : c){                                  //This enhanced for loop just checks every value of the first array sees if the number is odd or even, excluding 0s
			if (i != 0){//excluding 0s	                 //!! An enhances for loop is a condensed regular for loop designed for arrays and lists, it sets the variable
				if (i % 2 == 0){//evens...               //before the colon to each value in the array(if the types match) and executes the block of code each time the
					numsEven[count] = i;                 //value changes
					count++;
					evens++;
				
				}
				else{//odds...
					numsOdds[count] = i;
					count++;
					odds++;
				}
			}
		}
		
		for(int i : numsOdds){//putting the odds into a string to be printed
			if(i != 0)
				numsOddsPrint += i + " ";
		}
		
		numsOddsPrint += "]";
		
		for(int i : numsEven){//putting the evens into a string to be printed
			if(i != 0)
				numsEvenPrint += i + " ";
		}
		
		numsEvenPrint += "]";
		
		System.out.printf("\nThere were %d odds :: %s",odds,numsOddsPrint);
		System.out.printf("\nThere were %d evens :: %s",evens,numsEvenPrint);
	}
}

[Norm]

Please change the colors in your post to something easier to read.

[DarrylBurke]

This is for people in my Comp Sci class

In which you're a student, right?

any feed back is appreciated.

Learn proper coding conventions. As written, your code is well-nigh unreadable.
Code Conventions for the Java Programming Language: Contents

db

[Dr_Death]

In which you're a student, right?

Yes, I am, sorry for the confusing sentence.

Learn proper coding conventions. As written, your code is well-nigh unreadable.
Code Conventions for the Java Programming Language: Contents

Thanks for the link, I'd never seen that before.