Question

我相信你能说出来，但我是java的新手。无论如何，当一个人输入一个名字时，我试图读取接下来的3行，当文件中有其他名称和信息时从txt文件中搜索。信息被放入另一个程序的txt文件中，该程序询问名字，姓氏，身份证号码和经验年限，并将它们打印在不同的行上。这是我到目前为止所做的。

System.out.println("Please enter first name of employee.");
  String employeeName = keyboard.nextLine();    

  // Check to see if the name is in the file
  // And for some reason if the name is in it, it says that it's not
  if(fileName.contains(employeeName))
  {
     System.out.println("Sorry, that employee is not in the file.");
  }
  else
  {                
     // Read the last name.
     String lastName = inputFile.nextLine();
     System.out.println(lastName);

     // Read the employee number
     String employeeID = inputFile.nextLine();
     System.out.println(employeeID);

     // Read the years of experience
     String years = inputFile.nextLine();
     System.out.println(years);
  }

Answer 1

您可以使用.hasNext方法读取文件中的行

这是我的伪代码：

else
{

String[] name;
int[] id;
int[] yearsofexp;

while (filename.hasNext()) 
            {
                name = filename.nextLine(); 
                id = filename.nextInt;
                yearsofexp = filename.nextInt();

            }

}

Answer 2

    create a file "myFile.txt" and save it in the same folder with your code.

公共课Abebe { public static void main（String [] args）抛出FileNotFoundException {

        Scanner keyboard= new Scanner(System.in);

        System.out.println("Please enter first name of employee.");


        String employeeName = keyboard.nextLine();

      File fileName= new File("myFile.txt");  // open the file

        Scanner inputFile= new Scanner(fileName); // read in the file

        if(!inputFile.hasNext(employeeName))  // here you are checking if the name you entered is available in your file
        {
            System.out.println("Sorry, that employee is not in the file.");
        }
        else
        {
            // Read the last name.
            String lastName = inputFile.nextLine();
            System.out.println(lastName);

            // Read the employee number
            String employeeID = inputFile.nextLine();
            System.out.println(employeeID);

            // Read the years of experience
            String years = inputFile.nextLine();
            System.out.println(years);
        }
}}

从.txt文件中读取名称后，如何打印下3行？

2 个答案: