Created
June 14, 2013 11:18
-
-
Save sahirshahryar/5781095 to your computer and use it in GitHub Desktop.
String math. We already have algebra (math with letters), so why not just math with words? NOTE: Untested, will test later.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package com.futuredev.tracker.msg; | |
import java.util.ArrayList; | |
public class StringMath { | |
// "Multiplies" a string. | |
public static String multiply (String start, int times, String separator) { | |
String result = ""; | |
boolean first = true; | |
for (int i = 0; i < times; i++) { | |
result += (first ? "" : separator) + start; | |
first = false; | |
} return result; | |
} | |
// Divides a string into an array. | |
public static String[] divide (String start, int denominator) { | |
ArrayList<String> parts = new ArrayList<String>(); | |
boolean evenlyDivisible = start.length() % denominator == 0; | |
if (evenlyDivisible) { | |
int quotient = start.length() / denominator; | |
for (int i = 0; i < denominator; i++) { | |
int start = i * quotient; | |
int finish = start + quotient - 1; | |
parts.add(start.substring(start, finish)); | |
} | |
} else { | |
int quotient = start.length() / denominator; | |
int offset = 0; | |
for (int i = 0; i < denominator; i++) { | |
boolean even = i % 2 == 0; | |
int start = (i * quotient) + offset; | |
int finish = start + denominator; | |
parts.add(start.substring(start, finish)); | |
if (!even) ++offset; | |
} | |
} | |
return (String[]) parts.toArray(); | |
} | |
// Loops the characters of a string. | |
public static String loop (String start, int chars) { | |
if (chars > start.length()) { | |
int x = chars; | |
while (chars > start.length()) { | |
x -= start.length(); | |
} | |
int times = chars / start.length() + (chars % start.length() == 0 ? 0 : 1); | |
String result = ""; | |
for (int i = 0; i < times; i++) { | |
result += (times - i == 1 ? start.substring(0, x) : start); | |
} return result; | |
} String addition = start.substring(0, chars); | |
return start + addition; | |
} | |
// Trims a string. | |
public static String trim (String start, int length) { | |
return (length >= start.length() ? start : start.substring(0, length)); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment