my question is how allow a user to enter the following details by using a code

1 basic salary
2 house allowance
3 transport allowance
4 risk allowance

To allow a user to enter the details of basic salary, house allowance, transport allowance, and risk allowance by using code, you can create a simple program that prompts the user to input these values and then stores them in separate variables. Here is an example code written in Python:

```
# Prompt the user to enter basic salary
basic_salary = float(input("Enter your basic salary: "))

# Prompt the user to enter house allowance
house_allowance = float(input("Enter your house allowance: "))

# Prompt the user to enter transport allowance
transport_allowance = float(input("Enter your transport allowance: "))

# Prompt the user to enter risk allowance
risk_allowance = float(input("Enter your risk allowance: "))

# Print the values entered by the user
print("Basic salary: ", basic_salary)
print("House allowance: ", house_allowance)
print("Transport allowance: ", transport_allowance)
print("Risk allowance: ", risk_allowance)
```

This code prompts the user to enter each allowance one by one and stores them as float variables. The values are then printed for confirmation. You can modify this code depending on the programming language you are using and your specific requirements.

To allow a user to enter the details of basic salary, house allowance, transport allowance, and risk allowance using code, you can use programming languages like Python. Here's an example of how you can achieve this:

```python
# Prompt the user to enter the details
basic_salary = float(input("Enter the basic salary: "))
house_allowance = float(input("Enter the house allowance: "))
transport_allowance = float(input("Enter the transport allowance: "))
risk_allowance = float(input("Enter the risk allowance: "))

# Output the entered details
print("Basic Salary:", basic_salary)
print("House Allowance:", house_allowance)
print("Transport Allowance:", transport_allowance)
print("Risk Allowance:", risk_allowance)
```

In the above code snippet, the `input()` function is used to prompt the user to enter the required details. The `float()` function is used to convert the user input into a floating-point number.

Once the inputs are collected, you can perform any necessary calculations or display the entered details as needed.