Class Separator

Synopsis of Class Separator

public final class Separator { 
    /*
     * Forge (2)
     */
        Separator(char c); 
        Separator(String s); 
    /*
     * Type (1)
     */
        String toString(); 
    /*
     * Utilities (4)
     */
        static boolean isEmpty(Iterable<T> items); 
        static String wrap(String wrap, Iterable<T> items, String between); 
        static String wrap(String begin, String end, Iterable<T> items, String between); 
        static String wrap(String begin, String end, T[] items, String between); 
} 

Input types: Iterable<T>.

Code

// SSDLPedia
package il.ac.technion.cs.ssdl.utils;

import il.ac.technion.cs.ssdl.stereotypes.Instantiable;
import edu.umd.cs.findbugs.annotations.NonNull;

/**
 * A class representing a separator string, which can be used for separating
 * elements of a sequence while printing it, without special case treatment of
 * the first or last element. For example, the following program prints a list
 * of its arguments separated by commas, without using any conditionals.

   static void main(String[] args) {
   	Separator s = new Separator(", ");
   	for (String a : args)
   		System.out.print(s + a);
   }

 * Author: Yossi Gil (
 * See:  12/02/2006)
 */
@Instantiable public final class Separator {
    private final String s;
    boolean first = true;
    
    public Separator(final char c) {
        s = "" + c;
    }
    
    public Separator(final String s) {
        this.s = s;
    }
    
    @Override public String toString() {
        if (!first)
            return s;
        first = false;
        return "";
    }
    
    public static <T> boolean isEmpty(final Iterable<T> items) {
        return !items.iterator().hasNext();
    }
    
    public static <T> String wrap(final String wrap, final Iterable<T> items, final String between) {
        return wrap(wrap, wrap, items, between);
    }
    
    public static <T> String wrap(final String begin, final String end, final Iterable<T> items, final String between) {
        if (isEmpty(items))
            return "";
        String $ = begin;
        final Separator s = new Separator(between);
        for (final T t : items)
            $ += s + t.toString();
        return $ + end;
    }
    
    public static <T> String wrap(@NonNull final String begin, @NonNull final String end, @NonNull final T[] items,
            final String between) {
        if (items.length == 0)
            return "";
        String $ = begin;
        final Separator s = new Separator(between);
        for (final T t : items)
            $ += s + t.toString();
        return $ + end;
    }
    
    static void main(final String[] args) {
        final Separator s = new Separator(", ");
        for (final String a : args)
            System.out.print(s + a);
    }
}

Metrics

Metric	Value	Acronym	Explanation
LOC	78	Lines Of Code	Total number of lines in the code
SCC	24	SemiColons Count	Total number of semicolon tokens found in the code.
NOT	375	Number Of Tokens	Comments, whitespace and text which cannot be made into a token not included.
VCC	1651	Visible Characters Count	The total number of non-white (i.e., not space, tab, newline, carriage return, form feed) characters.
CCC	1157	Code Characters Count	Total number of non-white characters in tokens. White space characters in string and character literals are not counted.
UIC	38	Unique Identifiers Count	The number of different identifiers found in the code
WHC	3	Weighted Horizontal Complexity	A heuritistic on horizontal complexity

Statistics

Statitic	Value
Average token length	3.1
Tokens/line	4.8
Visible characters/line	21
Code characters/line	15
Semicolons/tokens	6%
Comment text percentage	29%

Tokens by Kind

Token Kind	Occurrences
KEYWORD	65
OPERATOR	34
LITERAL	6
ID	138
PUNCTUATION	132
COMMENT	2
OTHER	209