字符串倒叙、英语单词整体倒叙

字符串取反

        String string = "abc123";
        // 方式一
        StringBuffer sBuffer1 = new StringBuffer(string);
        String string1 = sBuffer1.reverse().toString();
        System.out.println(string1);

        // 方式二
        char[] cs = string.toCharArray();
        StringBuffer sBuffer2 = new StringBuffer();
        for (int i = cs.length - 1; i >= 0; i--) {
            sBuffer2.append(cs[i]);
        }
        String string2 = sBuffer2.toString();
        System.out.println(string2);

 

英语句子单词整体取反

        String string = "i #love you&sunny";
        String[] strings = string.split("\\s|#|&");
        List<String> words = Arrays.asList(strings);
        Collections.reverse(words);
        StringBuffer sBuffer = new StringBuffer();
        for (String string2 : words) {
            sBuffer.append(string2 + " ");
        }
        String reWords = sBuffer.toString();