Console - return readLine(); } /** read an integer from the...

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/** An easy interface to read numbers and strings from standard input @version 1.10 10 Mar 1997 @author Cay Horstmann */ * public class Console { /** print a prompt on the console but don't print a newline @param prompt the prompt string to display */ public static void printPrompt(String prompt) { System.out.print(prompt + " "); System.out.flush(); } /** read a string from the console. The string is terminated by a newline @return the input string (without the newline) */ public static String readLine() { int ch; String r = ""; boolean done = false; while (!done) { try { ch = System.in.read(); if (ch < 0 || (char)ch == '\n') done = true; else if ((char)ch != '\r') // weird--it used to do \r\n translation r = r + (char) ch; } catch(java.io.IOException e) { done = true; } } return r; } /** read a string from the console. The string is terminated by a newline @param prompt the prompt string to display @return the input string (without the newline) */ public static String readLine(String prompt) { printPrompt(prompt);
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Unformatted text preview: return readLine(); } /** read an integer from the console. The input is terminated by a newline @param prompt the prompt string to display @return the input value as an int @exception NumberFormatException if bad input */ public static int readInt(String prompt) { while(true) { printPrompt(prompt); try { return Integer.valueOf (readLine().trim()).intValue(); } catch(NumberFormatException e) { System.out.println ("Not an integer. Please try again!"); } } } /** read a floating point number from the console. The input is terminated by a newline @param prompt the prompt string to display @return the input value as a double @exception NumberFormatException if bad input */ public static double readDouble(String prompt) { while(true) { printPrompt(prompt); try { return Double.parseDouble(readLine().trim()); } catch(NumberFormatException e) { System.out.println ("Not a floating point number. Please try again!"); } } } }...
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This note was uploaded on 04/26/2010 for the course COMPUTER S Java2 taught by Professor Kwstasmixail during the Spring '10 term at Technical University of Crete.

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Console - return readLine(); } /** read an integer from the...

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