Глядя на решение этого кода, завершите программу, пожалуйста

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class Employee{

	String name;
	double salary;
	
	public Employee(String name, double salary){
		this.name = name;
		this.salary = salary;
	}
	
	public int hashCode(){
		//normal implementation using name and salary
	}
	
	public boolean equals(){
		//normal implementation using name and salary
	}
	
}

Employee e1 = new Employee("emp1",2500);
Employee e2 = new Employee("emp2",2600);
Employee e3 = new Employee("emp3",2700);

Map<Employee,Double> map = new HashMap<>();
map.put(e1,4000.00);
map.put(e2,5000.00);
map.put(e3,3000.00);

e1 = new Employee("emp4",2800);

double salary1 = map.get(e1);

System.out.println(salary1);

e2.name = "emp5";

double sal2 = map.get(e2);

System.out.println(sal2);

Что я уже пробовал:

lookin for a solution of this code,,,complete the program please

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