関連ワード:  java replace last character of string    java change last character of string    java replace last 4 characters of string    java replace last two characters of string    java replace last 3 characters of string    java replace last n characters of string    java replace first and last character of string    java replace last occurrence of character in string    java stringbuilder replace last character    java replace first character of string  
結果 : java replace last character of string