charbuffer.java

这是个国外JAVA爱好者写的条形码生成器

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package net.sourceforge.barbecue.linear.code128;

import java.util.List;
import java.util.ArrayList;

public final class CharBuffer {
    private final int size;
    private List chars;
    
    public CharBuffer(int size) {
        this.size = size;
        this.chars = new ArrayList();
    }
    
    public int size() {
        return chars.size();
    }
    
    public void addChar(char c) {
        chars.add(new Character(c));
    }
    
    public boolean isFull() {
        return chars.size() == size;
    }
    
    public String toString() {
        char[] out = new char[size];
        for (int i = 0; i < size; i++) {
            Character character = (Character) chars.get(i);
            out[i] = character.charValue();
        }
        return new String(out);
    }
    
    public void clear() {
        chars.clear();
    }
}