java - 如何从Java中的一个字符串获取多个变量集

Question

我正在尝试使用一个 println 设置多个字符串变量。这是我所拥有的：

Scanner scanner = new Scanner(System.in);

String teacher = "";
String classSelect = "";
String location = "";

System.out.println("Enter a teacher: ");
teacher = scanner.next();

System.out.println("Enter a class name: ");
classSelect = scanner.next();

System.out.println("Enter a location: ");
location = scanner.next();

这是我想要完成的事情：

String section = "";
String instructor = "";
String location = "";

System.out.printf("Only fill in applicable criteria, leave the rest blank :\n"
        + "Section://Sets section var// \n"
        + "Instructor://Sets instructor var// \n"
        + "Location://Sets location var// \n");

Answer 1

这可能不是一种道德的方式，但试试吧

System.out.printf("Only fill in applicable criteria, leave the rest blank and use | after every field:\n"
        + "Section://Sets section var// \n"
        + "Instructor://Sets instructor var// \n"
        + "Location://Sets location var// \n");

如果用户输入

abc|xyz|loc

在字符串中接受它

String input = scanner.nextLine();
String[] inputs=input.split("|");
inputs[0]//<--section
inputs[1]//<--instructor
inputs[2]//<--location

Answer 2

您是否正在寻找这个：

   String message = 
        String.format("Only fill in applicable criteria, leave the rest blank :\n"
        + "Section: %s \n"
        + "Instructor: %s \n"
        + "Location:%s \n", 
        section ,instructor,location );

或这个？

    System.out.printf("Only fill in applicable criteria, leave the rest blank :\n"
            + "Section: %s \n"
            + "Instructor: %s \n"
            + "Location:%s \n", 
            section ,instructor,location );