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Eh Compiling Problem

Duz

By Duz
in Applications & Coding

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Duz Newbie

Duz

Posted
Posted

I cant seem to get this to compile any one see why? or any way to tidy up the code.

/////////////////////////////////////////////////////////////////////////////////

// /

// Conor Hughes /

// /

// Group 5 /

// /

// /

// Student Number: B00032375 /

// /

// /

// Java Project; Option 2. Email Sort /

// /

/////////////////////////////////////////////////////////////////////////////////

class projectmail2{

public static void main (String[]args)

{

//declare variables

int repeat;

int a;

a=0;

int array [][] = new int [5][3]; // Declare and alocate array

for(int r = 0; r < array.length; r++) //for loop to fill array

{

for(int c = 0; c < array[r].length; c++)

{

array[r][c] = (int)(Math.random()*10000%10 + 1);

}

}

do{

System.out.println("Emails (Unsorted):"); //print to screen

System.out.println("--------------------------------------"); //print to screen for aesthetics

System.out.print("Date: From: Attachments:\n"); //print to screen

displayArray(array); //display array (array) to screen

/*__________________________________________________________________________*/

System.out.println("Select sort type:\n");

System.out.println("1.Sort by date.\n");

System.out.println("2.Sort by number of attachments.\n");

System.out.println("3.Sort by name.\n");

a =Keyboard.readInt();

if(a==1){ //if user selects 1

sortdate(array); // Function to sort array

displayArray(array); //displays (array) to screen

}

else if (a==2){ sortattachment(array); //if user selects 2

displayArray(array);}

else if (a==3){ sortname(array); //if user selects

displayArray(array);}

/*__________________________________________________________________________*/

System.out.println("REPEAT? 1= Yes. 2= No.");

repeat=Keyboard.readInt();

}while (repeat==1); //while repeat = 1, re-run program

}

static void displayArray(int array[][]) // Display array function

{

System.out.println("Emails (Sorted):");

System.out.println("--------------------------------------"); //aesthetics

System.out.print("Date: From: Attachments:\n");

for(int r = 0; r < array.length; r++)

{

System.out.println();

for(int c = 0; c < array[r].length; c++)

{

if(c == 0)

{

System.out.print(array[r][c] + " ");

}

if(c == 1)

{

System.out.print(getName(array[r][c]));

}

if(c == 2)

{

System.out.print(array[r][c] + " ");

}

}

}

System.out.print("\n\n\n\n");

}

static String getName(int num) // Function to return name

{

String name = null;

switch(num) //switch statement to return name.

{

case 1: name = "Arnie\t\t";break;

case 2: name = "Paul\t\t";break;

case 3: name = "Simon\t\t";break;

case 4: name = "Robert\t\t";break;

case 5: name = "Luke\t\t";break;

case 6: name = "John\t\t";break;

case 7: name = "Kerry\t\t";break;

case 8: name = "Sue\t\t";break;

case 9: name = "Pamela\t\t";break;

case 10: name = "Sinead\t\t";break;

}

return (name);

}

static void sortname(int array [][]) // Function to sort array by name

{

int n=array.length;

int temp[] = new int[3];

for(int pass=1; pass<n; pass ++) { //open for loop

for( int i=0; i< n-pass; i++)

{ //open nested for loop

if (array[1] > array[i+1][1] ){

temp[0] = array[0];

temp[1] = array[1];

temp[2] = array[2];

array[0] = array[0];

array[1] = array[1];

array[2] = array[2];

array[0] = temp[0];

array[1] = temp[1];

array[2] = temp[2];

} //close if statement

} //close for loop

} //close for loop

}

static void sortdate(int array [][]) // Function to sort array by date

{

int n=array.length;

int temp[] = new int[3];

for(int pass=1; pass<n; pass ++) {

for( int i=0; i< n-pass; i++)

{

if (array[0] > array[i+1][0] ){

temp[0] = array[0];

temp[1] = array[1];

temp[2] = array[2];

array[0] = array[0];

array[1] = array[1];

array[2] = array[2];

array[0] = temp[0];

array[1] = temp[1];

array[2] = temp[2];

}

}

}

}

static void sortattachment(int array [][]) // Function to sort array by attachments

{

int n=array.length;

int temp[] = new int[3];

for(int pass=1; pass<n; pass ++) {

for( int i=0; i< n-pass; i++)

{

if (array[2] > array[i+1][2] ){

temp[0] = array[0];

temp[1] = array[1];

temp[2] = array[2];

array[0] = array[0];

array[1] = array[1];

array[2] = array[2];

array[0] = temp[0];

array[1] = temp[1];

array[2] = temp[2];

}

}

}

}

} //end of program. Compilation= Success

Thanks everyone

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Brains Newbie

Brains

Posted
Posted

I took your code and made it run, I cleaned it up with the eclipse cleanup tools, so everything should be nice and formatted. The try/catch blocks need to be redone to compensate for the lack of an input if there isn't one, but this was just thrown together with the code you provided.

You also don't need all those \n's inside the System.out.printlns, they already create new lines. If you want to use \n use System.out.print. You might want it that way, but in eclipse it looks very... spread out, I like all my information in as close as a group as I can get it.

You can create a Keyboard class if you want that will handle the getting of ints and stuff, but I'm lazy and didn't want to create another class, so I just threw in some code I already had laying around.


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class projectmail2 {
	// ///////////////////////////////////////////////////////////////////////////////
	// /
	// Conor Hughes /
	// /
	// Group 5 /
	// /
	// /
	// Student Number: B00032375 /
	// /
	// /
	// Java Project; Option 2. Email Sort /
	// /
	// ///////////////////////////////////////////////////////////////////////////////

	public static void main(String[] args) {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		// declare variables
		int repeat = 0;
		int a;
		a = 0;

		int array[][] = new int[5][3]; // Declare and alocate array

		for (int r = 0; r &lt; array.length; r++) // for loop to fill array
		{
			for (int c = 0; c &lt; array[r].length; c++) {
				array[r][c] = (int) (Math.random() * 10000 % 10 + 1);
			}
		}

		do {

			System.out.println("Emails (Unsorted):"); // print to screen
			System.out.println("--------------------------------------"); // print
			// to
			// screen
			// for
			// aesthetics
			System.out.print("Date: From: Attachments:\n"); // print to screen
			displayArray(array); // display array (array) to screen

			/* __________________________________________________________________________ */
			System.out.println("Select sort type:\n");
			System.out.println("1.Sort by date.\n");
			System.out.println("2.Sort by number of attachments.\n");
			System.out.println("3.Sort by name.\n");
			String input = null;
			try {
				input = br.readLine().toLowerCase();
			} catch (IOException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}
			a = Integer.parseInt(input);
			if (a == 1) { // if user selects 1
				sortdate(array); // Function to sort array

				displayArray(array); // displays (array) to screen

			}

			else if (a == 2) {
				sortattachment(array); // if user selects 2

				displayArray(array);
			}

			else if (a == 3) {
				sortname(array); // if user selects

				displayArray(array);
			}

			/* __________________________________________________________________________ */

			System.out.println("REPEAT? 1= Yes. 2= No.");
			try {
				input = br.readLine().toLowerCase();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			a = Integer.parseInt(input);
		} while (repeat == 1); // while repeat = 1, re-run program
	}

	static void displayArray(int array[][]) // Display array function
	{

		System.out.println("Emails (Sorted):");
		System.out.println("--------------------------------------"); // aesthetics
		System.out.print("Date: From: Attachments:\n");

		for (int r = 0; r &lt; array.length; r++) {
			System.out.println();

			for (int c = 0; c &lt; array[r].length; c++) {
				if (c == 0) {
					System.out.print(array[r][c] + " ");
				}

				if (c == 1) {
					System.out.print(getName(array[r][c]));
				}

				if (c == 2) {
					System.out.print(array[r][c] + " ");
				}
			}
		}

		System.out.print("\n\n\n\n");
	}

	static String getName(int num) // Function to return name
	{
		String name = null;

		switch (num) // switch statement to return name.
		{
		case 1:
			name = "Arnie\t\t";
			break;
		case 2:
			name = "Paul\t\t";
			break;
		case 3:
			name = "Simon\t\t";
			break;
		case 4:
			name = "Robert\t\t";
			break;
		case 5:
			name = "Luke\t\t";
			break;
		case 6:
			name = "John\t\t";
			break;
		case 7:
			name = "Kerry\t\t";
			break;
		case 8:
			name = "Sue\t\t";
			break;
		case 9:
			name = "Pamela\t\t";
			break;
		case 10:
			name = "Sinead\t\t";
			break;
		}

		return (name);
	}

	static void sortname(int array[][]) // Function to sort array by name
	{
		int n = array.length;

		int temp[] = new int[3];

		for (int pass = 1; pass &lt; n; pass++) { // open for loop

			for (int i = 0; i &lt; n - pass; i++)

			{ // open nested for loop
				if (array[i][1] &gt; array[i + 1][1]) {

					temp[0] = array[i][0];
					temp[1] = array[i][1];
					temp[2] = array[i][2];

					array[i][0] = array[i + 1][0];
					array[i][1] = array[i + 1][1];
					array[i][2] = array[i + 1][2];

					array[i + 1][0] = temp[0];
					array[i + 1][1] = temp[1];
					array[i + 1][2] = temp[2];
				} // close if statement

			} // close for loop
		} // close for loop

	}

	static void sortdate(int array[][]) // Function to sort array by date
	{
		int n = array.length;

		int temp[] = new int[3];

		for (int pass = 1; pass &lt; n; pass++) {

			for (int i = 0; i &lt; n - pass; i++)

			{
				if (array[i][0] &gt; array[i + 1][0]) {

					temp[0] = array[i][0];
					temp[1] = array[i][1];
					temp[2] = array[i][2];

					array[i][0] = array[i + 1][0];
					array[i][1] = array[i + 1][1];
					array[i][2] = array[i + 1][2];

					array[i + 1][0] = temp[0];
					array[i + 1][1] = temp[1];
					array[i + 1][2] = temp[2];
				}

			}
		}

	}

	static void sortattachment(int array[][]) // Function to sort array by
	// attachments
	{
		int n = array.length;

		int temp[] = new int[3];

		for (int pass = 1; pass &lt; n; pass++) {

			for (int i = 0; i &lt; n - pass; i++)

			{
				if (array[i][2] &gt; array[i + 1][2]) {

					temp[0] = array[i][0];
					temp[1] = array[i][1];
					temp[2] = array[i][2];

					array[i][0] = array[i + 1][0];
					array[i][1] = array[i + 1][1];
					array[i][2] = array[i + 1][2];

					array[i + 1][0] = temp[0];
					array[i + 1][1] = temp[1];
					array[i + 1][2] = temp[2];
				}

			}
		}

	}
} // end of program. Compilation= Success

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