反转文件中的每个单词并将其打印出来

Question

我有一个文件看起来是这样的：

“葛底堡演说
亚伯拉罕·林肯

public static void convertWord() throws Exception {
    String name;
    int sum = 0;
    
    Scanner sc2 = new Scanner(new File("text.txt"));
    while (sc2.hasNextLine()) {
        name = sc2.nextLine();
        for (int i = name.length() - 1; i >= 0; i--) {
            char c = name.charAt(i);
            System.out.print(c);
            
        }

Answer 1

可以使用StringBuilder::reverse进行反向操作

public static void convertWord() throws Exception {
    String name;
    Scanner sc2 = new Scanner(new File("text.txt"));
    StringBuilder builder = new StringBuilder();
    while (sc2.hasNextLine()) {
        name = sc2.nextLine();
        builder.append(name);
    }
    String reverse = builder.reverse().toString();
    System.out.println(reverse);
    sc2.close();
}