54 lines
1.5 KiB
Java
54 lines
1.5 KiB
Java
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Listle leters console applet
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/* Simulation of console-I/O program ListLetters,
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using ConsoleApplet as a basis. See the file
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ConsoleApplet.java for more information.
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*/
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public class ListLettersConsole extends ConsoleApplet {
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protected String getTitle() {
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return "Sample program "ListLetters"";
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}
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protected void program() {
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/* This program reads a line of text entered by the user.
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It prints a list of the letters that occur in the text,
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and it reports how many different letters were found.
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*/
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String str; // Line of text entered by the user.
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int count; // Number of different letters found in str.
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char letter; // A letter of the alphabet.
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console.putln("Please type in a line of text.");
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str = console.getln();
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str = str.toUpperCase();
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count = 0;
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console.putln("Your input contains the following letters:");
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console.putln();
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console.put(" ");
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for ( letter = 'A'; letter <= 'Z'; letter++ ) {
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int i; // Position of a character in str.
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for ( i = 0; i < str.length(); i++ ) {
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if ( letter == str.charAt(i) ) {
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console.put(letter);
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console.put(' ');
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count++;
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break;
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}
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}
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}
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console.putln();
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console.putln();
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console.putln("There were " + count + " different letters.");
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}
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}
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