Java 扫描仪未阻止输入

我能够解决我的上一个问题，但是，其中一个家伙建议我为此提出一个新问题，所以我们来了。下面的这段代码没有运行，是EmployeeTest.java主类的一部分

//change the company name
    String newCompanyName;
    System.out.println("Please enter a new company name:");
    newCompanyName = conIn.nextLine();
    Employees.setCompanyName(newCompanyName);

上述代码的输出为：

---------------------------------------

Please enter a new company name:

---------------------------------------

它只是打印代码和输出前后的所有内容。它从不要求输入

以下代码是EmployeeTest.java的全部内容

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package employeerionmurphy;
import employeerionmurphy.Employees.*;
import java.util.*;

/**
 *
 * @author Owner
 */
public class EmployeeTest {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here

        //declare scanner
        Scanner conIn = new Scanner(System.in);

        //instantiate 4 employee objects
        Employees worker1 = new Employees();
        Employees worker2 = new Employees();
        Employees worker3 = new Employees();
        Employees worker4 = new Employees();

        //Display the Employees
        System.out.println("Employee 1");
        System.out.println("----------------------");
        System.out.println(worker1.getInfo());
        System.out.println("Employee 2");
        System.out.println("----------------------");
        System.out.println(worker2.getInfo());
        System.out.println("Employee 3");
        System.out.println("----------------------");
        System.out.println(worker3.getInfo());
        System.out.println("Employee 4");
        System.out.println("----------------------");
        System.out.println(worker4.getInfo());

        //spacer for user readability
        System.out.println("");
        System.out.println("--------------------------------------------");
        System.out.println("");

        //declare variables to update Employees
        String newFirstName1, newFirstName2, newFirstName3, newFirstName4;
        String newLastName1, newLastName2, newLastName3, newLastName4;
        String newAddress1, newAddress2, newAddress3, newAddress4;
        String newCity1, newCity2, newCity3, newCity4;
        int newHoursWorked1, newHoursWorked2, newHoursWorked3, newHoursWorked4;
        int newWageRate1, newWageRate2, newWageRate3, newWageRate4;

        //update the employee (in progress)
        //upating worker1
        System.out.println("Please enter Employee 1's first name:");
        newFirstName1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's last name:");
        newLastName1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's address:");
        newAddress1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's city:");
        newCity1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's hours worked:");
        newHoursWorked1 = conIn.nextInt();
        System.out.println("Please enter Employee 1's wage rate:");
        newWageRate1 = conIn.nextInt();
        worker1.setFirstName(newFirstName1);
        worker1.setLastName(newLastName1);
        worker1.setAddress(newAddress1);
        worker1.setCity(newCity1);
        worker1.setHoursWorked(newHoursWorked1);
        worker1.setWageRate(newWageRate1);

        //upating worker1
        System.out.println("Please enter Employee 1's first name:");
        newFirstName1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's last name:");
        newLastName1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's address:");
        newAddress1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's city:");
        newCity1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's hours worked:");
        newHoursWorked1 = conIn.nextInt();
        System.out.println("Please enter Employee 1's wage rate:");
        newWageRate1 = conIn.nextInt();
        worker1.setFirstName(newFirstName1);
        worker1.setLastName(newLastName1);
        worker1.setAddress(newAddress1);
        worker1.setCity(newCity1);
        worker1.setHoursWorked(newHoursWorked1);
        worker1.setWageRate(newWageRate1);

        //upating worker1
        System.out.println("Please enter Employee 1's first name:");
        newFirstName1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's last name:");
        newLastName1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's address:");
        newAddress1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's city:");
        newCity1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's hours worked:");
        newHoursWorked1 = conIn.nextInt();
        System.out.println("Please enter Employee 1's wage rate:");
        newWageRate1 = conIn.nextInt();
        worker1.setFirstName(newFirstName1);
        worker1.setLastName(newLastName1);
        worker1.setAddress(newAddress1);
        worker1.setCity(newCity1);
        worker1.setHoursWorked(newHoursWorked1);
        worker1.setWageRate(newWageRate1);

        //upating worker1
        System.out.println("Please enter Employee 1's first name:");
        newFirstName1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's last name:");
        newLastName1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's address:");
        newAddress1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's city:");
        newCity1 = conIn.nextLine();
        System.out.println("Please enter Employee 1's hours worked:");
        newHoursWorked1 = conIn.nextInt();
        System.out.println("Please enter Employee 1's wage rate:");
        newWageRate1 = conIn.nextInt();
        worker1.setFirstName(newFirstName1);
        worker1.setLastName(newLastName1);
        worker1.setAddress(newAddress1);
        worker1.setCity(newCity1);
        worker1.setHoursWorked(newHoursWorked1);
        worker1.setWageRate(newWageRate1);

        //spacer for user readability
        System.out.println("");
        System.out.println("--------------------------------------------");
        System.out.println("");

        //upgrade the wage rate of the employee that has a wage rate of zero
        //(in progress)


        //spacer for user readability
        System.out.println("");
        System.out.println("--------------------------------------------");
        System.out.println("");

        //display Employees
        System.out.println("Employee 1");
        System.out.println("----------------------");
        System.out.println(worker1.getInfo());
        System.out.println("Employee 2");
        System.out.println("----------------------");
        System.out.println(worker2.getInfo());
        System.out.println("Employee 3");
        System.out.println("----------------------");
        System.out.println(worker3.getInfo());
        System.out.println("Employee 4");
        System.out.println("----------------------");
        System.out.println(worker4.getInfo());

        //spacer for user readability
        System.out.println("");
        System.out.println("--------------------------------------------");
        System.out.println("");

        //display the Employees name and gross pay
        System.out.println(worker1.getTotalPay());
        System.out.println(worker2.getTotalPay());
        System.out.println(worker3.getTotalPay());
        System.out.println(worker4.getTotalPay());

        //spacer for user readability
        System.out.println("");
        System.out.println("--------------------------------------------");
        System.out.println("");

        //change the company name
        String newCompanyName;
        System.out.println("Please enter a new company name:");
        newCompanyName = conIn.nextLine();
        Employees.setCompanyName(newCompanyName);

        //spacer for user readability
        System.out.println("");
        System.out.println("--------------------------------------------");
        System.out.println("");

        //display the Employees
        System.out.println("Employee 1");
        System.out.println("----------------------");
        System.out.println(worker1.getInfo());
        System.out.println("Employee 2");
        System.out.println("----------------------");
        System.out.println(worker2.getInfo());
        System.out.println("Employee 3");
        System.out.println("----------------------");
        System.out.println(worker3.getInfo());
        System.out.println("Employee 4");
        System.out.println("----------------------");
        System.out.println(worker4.getInfo());

        //spacer for user readability
        System.out.println("");
        System.out.println("--------------------------------------------");
        System.out.println("Built by Rion Murphy");

    }
}

---

这让我很困惑，没有错误，什么都没有。就是跑不动。我已经检查了代码，没有任何理由认为它不应该工作。

在问题代码出现之前检查代码

System.out.println("Please enter Employee 1's hours worked:");
newHoursWorked1 = conIn.nextInt();
System.out.println("Please enter Employee 1's wage rate:");
newWageRate1 = conIn.nextInt();

从标准输入读取

int

值。调用

nextInt（）

只读取

int

值，但保留

\r\n

换行符。因此，您下面的

nextLine（）

将使用这些信息，而不是等待输入

添加

conIn.nextLine();

在有问题的代码使用悬空的行尾字符之前。所以

conIn.nextLine();

String newCompanyName;
System.out.println("Please enter a new company name:");
newCompanyName = conIn.nextLine();
Employees.setCompanyName(newCompanyName);

---

调用后，

newCompanyName

的内容是什么？如果查看

worker[1-3]的输出，就会得到提示。getInfo（）

@chrylis将是

\n

。“我想你以前已经回答过这样一个问题了。”里昂默夫墨菲。尝试使用

conIn.next（）

而不是

conIn.nextLine（）

此外，请使用数组，而不仅仅是在变量名中添加数字。