提交作业

TemperatureConverter.java

@@ -0,0 +1,90 @@
+import java.util.Scanner;
+
+/**
+ * Temperature Converter (Java Version)
+ * Supports conversion between Celsius (C) and Fahrenheit (F).
+ *
+ * Features:
+ * 1. Interactive input, for example: 36.6 C or 97 F
+ * 2. Command-line argument mode, for example:
+ *    java TemperatureConverter 36.6 C
+ */
+public class TemperatureConverter {
+
+    /**
+     * Converts Celsius to Fahrenheit.
+     *
+     * @param c temperature in Celsius
+     * @return equivalent temperature in Fahrenheit
+     */
+    public static double celsiusToFahrenheit(double c) {
+        return c * 9.0 / 5.0 + 32.0;
+    }
+
+    /**
+     * Converts Fahrenheit to Celsius.
+     *
+     * @param f temperature in Fahrenheit
+     * @return equivalent temperature in Celsius
+     */
+    public static double fahrenheitToCelsius(double f) {
+        return (f - 32.0) * 5.0 / 9.0;
+    }
+
+    /**
+     * Main method of the program.
+     *
+     * Input examples:
+     * 1. Interactive mode: 36.6 C
+     * 2. Command-line mode: java TemperatureConverter 36.6 C
+     *
+     * @param args command-line arguments
+     */
+    public static void main(String[] args) {
+        String input;
+
+        // If command-line arguments are provided, use them first
+        if (args.length > 0) {
+            StringBuilder sb = new StringBuilder();
+            for (String arg : args) {
+                sb.append(arg).append(" ");
+            }
+            input = sb.toString().trim();
+        } else {
+            // Prompt the user for input, for example: "36.6 C" or "97 F"
+            Scanner scanner = new Scanner(System.in);
+            System.out.print("Enter the temperature and unit to convert (for example 36.6 C or 97 F): ");
+            input = scanner.nextLine().trim();
+        }
+
+        if (input.isEmpty()) {
+            System.out.println("Input is empty. Program terminated.");
+            return;
+        }
+
+        String[] parts = input.split("\\s+");
+        double value;
+        String unit;
+
+        try {
+            // Allow the user to enter a numeric value and a unit
+            value = Double.parseDouble(parts[0]);
+            unit = (parts.length > 1) ? parts[1].toUpperCase() : "C";
+        } catch (Exception e) {
+            System.out.println("Failed to parse input. Please enter a value and unit like: 36.6 C");
+            return;
+        }
+
+        if (unit.startsWith("C")) {
+            // Convert from Celsius to Fahrenheit
+            double f = celsiusToFahrenheit(value);
+            System.out.printf("%.1f °C = %.2f °F%n", value, f);
+        } else if (unit.startsWith("F")) {
+            // Convert from Fahrenheit to Celsius
+            double c = fahrenheitToCelsius(value);
+            System.out.printf("%.1f °F = %.2f °C%n", value, c);
+        } else {
+            System.out.println("Unknown unit. Please use C or F.");
+        }
+    }
+}

readme.txt

@@ -0,0 +1,11 @@
+READ ME.md
+
+# TemperatureConverter
+
+This is a Java version of the Python temperature conversion program.  
+It supports conversion between Celsius (C) and Fahrenheit (F).
+
+## Compile
+
+```bash
+javac TemperatureConverter.java