Analyze the source code structure of the "Digital System Converter" framework in the Java library
The digital system converter is a framework in the Java class library, which provides developers with convenient methods to make conversion between different digital systems.The source code structure of this framework can be divided into the following parts:
1. Main class: The main class of this framework is the `NumberConverter` class, which is the entrance point of all conversion functions.This class contains various methods to perform conversion between different progress, such as decimal to binary, binary to hexadecimal.Below is a simple example of a `NumberConverter` class:
public class NumberConverter {
public String decimalToBinary(int decimal) {
return Integer.toBinaryString(decimal);
}
public int binaryToDecimal(String binary) {
return Integer.parseInt(binary, 2);
}
public String decimalToHexadecimal(int decimal) {
return Integer.toHexString(decimal);
}
public int hexadecimalToDecimal(String hexadecimal) {
return Integer.parseInt(hexadecimal, 16);
}
// Other conversion methods ...
}
2. Abnormal class: This framework also contains some abnormal classes to deal with errors that may occur during the conversion process.For example, `InvalidnumberFormatexception` classes can be thrown when the input string cannot be parsed as an effective number.
public class InvalidNumberFormatException extends RuntimeException {
public InvalidNumberFormatException(String message) {
super(message);
}
// Optional additional methods and variables ...
}
3. Auxiliary tool class: This framework may also contain some auxiliary tools to support the implementation of conversion.For example, you can provide a `valueutils` class to verify the legitimacy of input.
public class ValidationUtils {
public static boolean isValidBinary(String binary) {
String regex = "[01]+";
return binary.matches(regex);
}
public static boolean isValidHexadecimal(String hexadecimal) {
String regex = "[0-9A-Fa-f]+";
return hexadecimal.matches(regex);
}
// Other verification methods ...
}
Through this source code structure, the digital system converter framework provides a simple and flexible way to perform conversion between different digital systems.Developers can directly use the method in the `NumberConverter` class, or expand and customize as needed.At the same time, the presence of abnormal and auxiliary tool classes makes the conversion process more stable and reliable.Whether it is developing applications or writing test cases, the framework of the digital system converter can facilitate developers.
