Java輸出語句中缺少標識符怎么辦？動力節點小編來為大家舉例說明。

背景：

將公有變量改成私有變量之后，增加兩個構造函數，訪問通過外部調用構造函數實現初始化賦值。

源碼：

//程序文件名為 UseConstruct.java
public class UseConstruct
{
    public static void main(String[] args) 
    {
        Manager m = new Manager("王飛",10000,"業務部");  //初始化賦值
        System.out.println(m.getSalary());
    }
}
class Employee
{
    private String name;
    private int salary;
    //構造函數
    public Employee(String_name, int_salary)
    {
        name = _name;
        salary = _salary;
    }
    public String getSalary()
    {
        String str;
        str = "名字:" + name +"\nSalary:" + salary;
        return str;
    }
}
class Manager extends Employee
{
    private String department;
    //構造函數
    public Manager(String_name, int_salary, String_department)
    {
        super(_name, _salary);
        department = _department;
    }
    public String getSalary()
    {
        return super.getSalary() + "\nDepartment:" + department;
    }
}

運行結果

原因及解決辦法

在兩個構造函數處，參數聲明格式錯誤String_name, int_salary, String_department

解決辦法

將 String_name, int_salary, String_department

改為 String _name, int _salary, String _department