stringeditor.java

来自「Java与面向对象程序设计实验教学讲义.复数类的实现,复数类的复杂运算,身份证号」· Java 代码 · 共 13 行

public class StringEditor {
   public static String removeNonLetters(String original) {
      StringBuffer aBuffer = new StringBuffer(original.length());
      char aCharacter;
      for (int i=0; i<original.length(); i++) {
         aCharacter = original.charAt(i);
         if (Character.isLetter(aCharacter))
           aBuffer.append(new Character(aCharacter));
         }
         return new String(aBuffer);
    }
 }