java - 将第一个单词移动到 Java 中的最后一个位置

Question

如何让 Jave is the language 成为 Is the language Java这是我的代码，但我认为这里存在一些问题。

public class Lab042{
    public static final String testsentence = "Java is the language";
    public static void main(String [] args) {
        String rephrased = rephrase( testsentence);
        System.out.println("The sentence:"+testsentence);
        System.out.println("was rephrased to:"+rephrased);
    }

    public static String rephrase(String testsentence) {
        int index = testsentence.indexOf (' ');
        char c = testsentence.charAt(index+1);
        String start = String.valueOf(c).toUpperCase();
        start += testsentence.substring(index+2);
        start += " ";
        String end = testsentence.substring(0,index);
        String rephrase = start + end;
    }
}

Answer 1

您不会返回新短语。在你的方法 rephrase() 的底部，把这个:

return rephrase;