自己重写的split

public static void main(String[] args) {
    Long l=System.currentTimeMillis();
    String t[] =mySplit("1234$2344556$2213$wwer$2qww","$2");
    System.out.println(Arrays.toString(t));
    Long l2=System.currentTimeMillis();
    System.out.println(l2-l);
}
public static String[] mySplit(String text,String separat){
    int off = 0;
    int len = 0;
    ArrayList<String> list = new ArrayList<>();
    int next =0;
    do{
        next = text.indexOf(separat,off);
        if(next==-1){
            list.add(text.substring(off));
            String[] result = new String[len];
            return result=list.toArray(result);
        }
        list.add(text.substring(off, next));
        off = next + 1;
    }while(next!= -1)  ;
    return null ;
}

自己重写的split

原文：https://www.cnblogs.com/Java93/p/14543395.html