Java中字符串按逗号分开成为String数组

Question

输入一组String数字字符串，用“，”号隔开 要求把它们转换成String数组 帮帮忙大家 写一小段程序

Answer 1

import java.util.Scanner;
public class Test {
public static void main(String[] args) {
int i,n=0;
String[] words;
Scanner sc=new Scanner(System.in);
System.out.println ("请输入一串数字，以逗号隔开:");
String str=sc.next();
for(i=0;i<str.length();i++){
if(str.charAt(i)==',') n++;
}
words=str.trim().split(",");
for(i=0; i<str.length()-n; i++) {
System.out.print(words[i]+"\t");
}
}
}

Answer 2

public String[] strToArray(String str) {
StringTokenizer st = new StringTokenizer(str, ",");
String[] strArray = new String[st.countTokens()];
int strLeng = st.countTokens();

for (int i=0; i<strLeng; i++) {
strArray[i] = st.nextToken();

}
return strArray;
}

试试好用吗。