java英文数字转换为阿拉伯数字

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

public class EnNumberTOArabiaNumerals{
public static void main(String[] args) {
String[] a={"zero","one","two", "three","four", "five","six","seven","eight","nine"};
//测试数字 zerofourzerothreefourfive
Scanner input=new Scanner(System.in);
System.out.println("请输入英文数字,输入完之后请按回车键！");
System.out.println("测试数字为zerofourzerothreefourfive");
String str=input.next();
String c=str;//这是输入的英文数字
String cCopy=str;//这是复制的输入的英文数字
List<String> list=new ArrayList<String>();
int count=0;
for (int i = 0; i < a.length; i++) {
for (int j= 0; j < a.length; j++) {
if(cCopy.startsWith(a[j])){
count++;
cCopy=cCopy.substring(a[j].length(), cCopy.length());
break;
}
}

}

//count为c的个数,将c中的数存入到list集合中去;
for (int i = 0; i < count; i++) {
for (int j = 0; j < a.length; j++) {
if(c.startsWith(a[j])){
list.add(a[j]);
c=c.substring(a[j].length(), c.length());
break;
}
}
}
//list集合的数和数组a进行判断，找出下标;
System.out.print("你输入的英文数字为:");
for (int i = 0; i < list.size(); i++) {
System.out.print(list.get(i));
}
System.out.println();
System.out.print("英文转换为阿拉伯数字为:");
for (int i = 0; i < list.size(); i++) {
for (int j = 0; j < a.length; j++) {
if(list.get(i).equals(a[j])){
System.out.print(j);
}
}
}

}
}