lol

src/zutil/math/Tick.java

@@ -0,0 +1,110 @@
+package zutil.math;
+
+public class Tick {
+
+	/**
+	 * TEST
+	 */
+	public static void main(String[] args){
+		String temp = "a";
+		while(true){
+			temp = tick(temp,3);
+			System.out.println(temp);
+		}
+	}
+	
+	/**
+	 * Ticks a given string(increments the string with one)
+	 * 
+	 * @param ts The string to tick
+	 * @param maxChar The maximum number of characters in the string
+	 * @return The ticked string
+	 */
+	public static String tick(String ts, int maxChar){
+		StringBuffer ret = new StringBuffer(ts.trim());
+		int index = ret.length()-1;
+		
+		if(ret.length() < maxChar){
+			ret.append('a');
+		}
+		else{
+			while(index >= 0){
+				char c = increment(ret.charAt(index));
+				if(c != 0){
+					if(index == 0 && ret.length() < maxChar) ret.append('a');
+					if(index == 0) ret = new StringBuffer(""+c);
+					else ret.setCharAt(index,c);
+					break;
+				}
+				else{
+					//ret.setCharAt(index,'a');
+					ret.deleteCharAt(index);
+					index--;
+				}
+			}
+		}
+		
+		return ret.toString();
+	}
+	
+	/**
+	 * Increments the char with one after the swedish alfabet
+	 * 
+	 * @param c The char to increment
+	 * @return The incremented char in lowercase 0 if it reached the end
+	 */
+	public static char increment(char c){
+		switch(Character.toLowerCase(c)){
+		case 'z': return 'å';
+		case 'å': return 'ä';
+		case 'ä': return 'ö';
+		}
+		c = (char)(Character.toLowerCase(c) + 1);
+		if(isAlfa(c)){
+			return c;
+		}
+		return 0;
+	}
+	
+	/**
+	 * Checks if the char is a valid character in 
+	 * the Swedish alfabet
+	 * 
+	 * @param c The char to check
+	 * @return True if the char is a valid letter 
+	 */
+	public static boolean isAlfa(char c){
+		switch(Character.toLowerCase(c)){
+		case 'a':
+		case 'b':
+		case 'c':
+		case 'd':
+		case 'e':
+		case 'f':
+		case 'g':
+		case 'h':
+		case 'i':
+		case 'j':
+		case 'k':
+		case 'l':
+		case 'm':
+		case 'n':
+		case 'o':
+		case 'p':
+		case 'q':
+		case 'r':
+		case 's':
+		case 't':
+		case 'u':
+		case 'v':
+		case 'w':
+		case 'x':
+		case 'y':
+		case 'z':
+		case 'å':
+		case 'ä':
+		case 'ö': return true;
+		default: return false;
+		}
+	}
+}