java學習筆記之——StringUtils.join()

commons.lang3.StringUtils

StringUtils.join(Object array[],String separator)   

將數組以符號或其他字符串為間隔組成新的字符串

Object array[] 需要轉換的數組。separator組成新串的間隔符號，如 "," "|"

private static final String[] str = {"1","2","3","4"}; 2 String str2 = StringUtils.join(str, "|"); 3 
System.out.println(str2);

輸出結果：1|2|3|4