Java 字符串缓存实例

public class StringBuffer {
   public static void main(String[] args) {
      countTo_N_Improved();
   }
   private final static int MAX_LENGTH = 30;
   private static String buffer = "";

   private static void emit(String nextChunk) {
      if(buffer.length() + nextChunk.length() > MAX_LENGTH) {
         System.out.println(buffer);
         buffer = "";  
      }
      buffer += nextChunk;
   }
   private static final int N = 100;
   private static void countTo_N_Improved() {
      for (int count = 2; count<= N; count = count+2) {
         emit(" " + count);
      }
   }
}