方法一：

public class test {

public static void main(String args[]) {

int ss = Integer.parseInt(args[0]);
if(ss==0)
System.out.println("零");
else if (ss==1)
System.out.println("壹");
else if (ss==2)
System.out.println("贰");
else if (ss==3)
System.out.println("叁");
else if (ss==4)
System.out.println("肆");
else if (ss==5)
System.out.println("伍");
else if (ss==6)
System.out.println("陆");
else if (ss==7)
System.out.println("柒");
else if (ss==8)
System.out.println("捌");
else if (ss==9)
System.out.println("玖");
else
System.out.println("");

}
}

方法二：

import java.io.*;

public class Test1 {


public static void main(String[] args) {
  //数据字典!
  char c[]={'零','壹','贰','叁','肆','伍','陆','柒','捌','玖'};
  //等待输入!
  System.out.print("请输入一个阿拉伯数字: ");
  BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
  //得到输入!
  try {
   String input=br.readLine();
   for(int count=0;count<input.length();count++){
    //转成数字
    char temp=input.charAt(count);
    switch (temp){
    case '1':System.out.print(c[1]);break;case '2':System.out.print(c[2]);break;
    case '3':System.out.print(c[3]);break;case '4':System.out.print(c[4]);break;
    case '5':System.out.print(c[5]);break;case '6':System.out.print(c[6]);break;
    case '9':System.out.print(c[9]);break;case '8':System.out.print(c[8]);break;
    case '0':System.out.print(c[0]);break;default:break;
    }
    
   }
  } catch (IOException e) {
   e.printStackTrace();
  }
 
}

}

方法三：

class Test {

    private static HashMap map;


    static {
        map = new HashMap();
        map.put(new Character('0'), "零");
        map.put(new Character('1'), "壹");
        map.put(new Character('2'), "贰");
        map.put(new Character('3'), "叁");
        map.put(new Character('4'), "肆");
        map.put(new Character('5'), "伍");
        map.put(new Character('6'), "陆");
        map.put(new Character('7'), "柒");
        map.put(new Character('8'), "捌");
        map.put(new Character('9'), "玖");
    }

    public static void main(String[] args) {
        String str = "123456";
        System.out.println(getNumberString(str));
        str = "123423245566";
        System.out.println(getNumberString(str));
    }

    public static String getNumberString(String str) {
        char ch[] = str.toCharArray();
        StringBuffer buffer = new StringBuffer();
        Character character;
        for (int i = 0; i < ch.length; i++) {
            character = new Character(ch[i]);
            buffer.append(map.get(character));
        }
        return buffer.toString();
    }
}