Programming Forums > Application Development > Java

redMan · Sep 29th, 2004, 1:15 PM

I have to code something which will take in an integer input from a file. Then it will read that many strings, and output them onto the console as triangles. Here are some examples:

SAMPLE INPUT:

(Toggle Plain Text)

3
ONE
FRED
A

SAMPLE OUTPUT:

(Toggle Plain Text)

 * O
 N *N
ENONE

 * *F
 * R R
 *E * E
DERFRED

A

My code keeps blowing up on me. Can anyone help me out?

(Toggle Plain Text)

import java.util.*;
import java.io.*;
public class Triangle{
	public static void main(String[]args) throws IOException{
 Scanner keyboard = new Scanner(new File("pr9a.dat"));
 int sets = keyboard.nextInt();
 keyboard.nextLine();
 for(int i=0; i<sets; i++){
 	String buffer = keyboard.nextLine();
 	int length = buffer.length();
 	char stringMatrix[][] = new char[length][length+length-1];
 	int offset = length;
 	for(int j=0; j<length; j++){
  stringMatrix[j][offset+j] = buffer.charAt(j);
  stringMatrix[j][offset-j] = buffer.charAt(j);
  offset++;
 	}
 	for(int r = 0; r<length; r++){
  for(int c = 0; c<length+length-1; c++){
  	System.out.print(stringMatrix[r][c]); 
  }
  System.out.println();
 	}
 }
	}
}

gamesage · Sep 29th, 2004, 9:40 PM

What exactly do you mean by blowing up on you?

Sep 29th, 2004, 1:15 PM	#1
redMan Newbie Join Date: Sep 2004 Posts: 1 Rep Power: 0	I have to code something which will take in an integer input from a file. Then it will read that many strings, and output them onto the console as triangles. Here are some examples: SAMPLE INPUT: (Toggle Plain Text) 3 ONE FRED A 3 ONE FRED A SAMPLE OUTPUT: (Toggle Plain Text) * O N N ENONE F R R E E DERFRED A * O N N ENONE F R R E E DERFRED A My code keeps blowing up on me. Can anyone help me out? (Toggle Plain Text) import java.util.; import java.io.; public class Triangle{ public static void main(String[]args) throws IOException{ Scanner keyboard = new Scanner(new File("pr9a.dat")); int sets = keyboard.nextInt(); keyboard.nextLine(); for(int i=0; i<sets; i++){ String buffer = keyboard.nextLine(); int length = buffer.length(); char stringMatrix[][] = new char[length][length+length-1]; int offset = length; for(int j=0; j<length; j++){ stringMatrix[j][offset+j] = buffer.charAt(j); stringMatrix[j][offset-j] = buffer.charAt(j); offset++; } for(int r = 0; r<length; r++){ for(int c = 0; c<length+length-1; c++){ System.out.print(stringMatrix[r][c]); } System.out.println(); } } } } import java.util.; import java.io.; public class Triangle{ public static void main(String[]args) throws IOException{ Scanner keyboard = new Scanner(new File("pr9a.dat")); int sets = keyboard.nextInt(); keyboard.nextLine(); for(int i=0; i<sets; i++){ String buffer = keyboard.nextLine(); int length = buffer.length(); char stringMatrix[][] = new char[length][length+length-1]; int offset = length; for(int j=0; j<length; j++){ stringMatrix[j][offset+j] = buffer.charAt(j); stringMatrix[j][offset-j] = buffer.charAt(j); offset++; } for(int r = 0; r<length; r++){ for(int c = 0; c<length+length-1; c++){ System.out.print(stringMatrix[r][c]); } System.out.println(); } } } }

Sep 29th, 2004, 9:40 PM	#2
gamesage Programmer Join Date: Sep 2004 Location: Clemson, SC Posts: 35 Rep Power: 0	What exactly do you mean by blowing up on you? __________________ Free Porn!!

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Application Development > Java

Need Help