Question

我仍然是java的初学者，但我在下面有这个代码我差不多完成了写作，但我很难弄清楚如何计算％10。也出于某种原因，它只需要原始的20000.00和30000.00并显示而不是新的％10增加的工资。怎么做到这一点？感谢您的帮助或见解，谢谢，

public class Employee 
{
  private String FirstName;
  private String LastName;
  private double MonthlySalary;

  public Employee (String FirstName, String LastName, double MonthlySalary)
  {
    this.FirstName = FirstName;
    this.LastName = LastName;
    this.MonthlySalary = MonthlySalary;
  }



  public void setFirstName (String firstName)
  {
    this.FirstName = FirstName;
  }

  public String getFirstName ()
  {
    return FirstName;
  }

  public void setLastName (String last)
  {
    this.LastName = LastName;
  }

  public String getLastName ()
  {
    return LastName;
  }

  public void setMonthlySalary (double salary)
  {
    if ( MonthlySalary < 0 )
       this.MonthlySalary = 0;
    else 
       this.MonthlySalary = MonthlySalary;
  }

  public double getMonthlySalary ()
  {
    return MonthlySalary;
  }
}

public class EmployeeTest 
{
    public static void main (String [] args)
    {
        Employee employee1 = new Employee ( " Bruce ", " Wayne ", 30000.00 );
        Employee employee2 = new Employee ( " Clark ", " Kent ", 20000.00);

        System.out.println( "Employee1:   " + employee1.getFirstName() + employee1.getLastName()  );//Displays employee1 name
        System.out.println( "Initial Salary: $ " + employee1.getMonthlySalary ()  );//Displays initial yearly salary

        System.out.println( "Employee2:  " + employee2.getFirstName () + employee2.getLastName()  );//Displays employee2 name
        System.out.println( "Initial Salary: $ " + employee2.getMonthlySalary ()  );//Displays initial yearly salary    

        System.out.println( "\n\t\t\t********Salary After 10% Raise********\n\t\t\t");//Banner to separate initial salary from 10% raised salary

        System.out.println( "Employee1:  " + employee1.getFirstName() +employee1.getLastName()  );//Displays employee1 name
        System.out.println( "Salary After 10% Raise:  " + employee1.getMonthlySalary()  );//Displays yearly salary after the 10% increase

        System.out.println( "Employee2:  " + employee2.getFirstName() +employee2.getLastName()  );//Displays employee2 name
        System.out.println( "Salary After 10% Raise:  " +  employee2.getMonthlySalary() );//Displays yearly salary after the 10% increase
    }
}

Answer 1

在打印增加的工资之前，您应该设置新值。为此，您必须修改setMonthlySalary方法，如下所示：

public void setMonthlySalary (double salary) {
    if ( salary < 0 )
       this.MonthlySalary = 0;
    else 
       this.MonthlySalary = salary;
  }

并做

employee1.setMonthlySalary(employee1.getMonthlySalary() * 1.1L);
employee2.setMonthlySalary(employee2.getMonthlySalary() * 1.1L);

Answer 2

你没有在10％加注后定义monthlySalary - 为monthlySalaryAfter10创建一个值并将monthlySalary乘以1.1

Answer 3

假设你有一个值 5 并且你想将它增加 10% 这意味着你应该知道你的值是 0.5 的 10% 是多少，然后你将这个值和 10% 的值添加到你增加的价值此过程类似于将您的值乘以 110% 所以第一个过程： 5 * .1 = .5 5 + .5 = 5.5

这需要很多步骤这是您获得 110% 价值的第二个过程

5 * 110/100 = 5 * 1.1 = 5.5

Java Help用于计算％10增加

3 个答案: