String str="abc";String a = String.valueOf(str.charAt(0));
String str="abc";String a = String.valueOf(str.charAt(0));
你题目是说吧字符转换成字符串 注释里说要转换成字符型char->String char c = 'a'; String s = c +"";//这个最简单 String s = String.valueOf(c); String->char String s = "a"; char[] cArray = s.toCharArray(); 或者 char c = s.charAt(i);
String str="abc";String a = String.valueOf(str.charAt(0));
String->char String s = "a"; char[] cArray = s.toCharArray(); 或者 char c = s.charAt(i);