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# TemperatureConverter |
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温度转换 Java 程序,实现摄氏度 ↔ 华氏度互转 |
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## 编译 |
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javac TemperatureConverter.java |
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## 运行 |
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java TemperatureConverter |
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import java.util.Scanner; |
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public class TemperatureConverter { |
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/** |
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* 将摄氏度转换为华氏度。 |
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* @param c 摄氏温度 |
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* @return 对应的华氏温度 |
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*/ |
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public static double celsiusToFahrenheit(double c) { |
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return c * 9.0 / 5.0 + 32.0; |
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} |
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/** |
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* 将华氏度转换为摄氏度。 |
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* @param f 华氏温度 |
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* @return 对应的摄氏温度 |
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*/ |
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public static double fahrenheitToCelsius(double f) { |
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return (f - 32.0) * 5.0 / 9.0; |
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} |
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public static void main(String[] args) { |
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Scanner scanner = new Scanner(System.in); |
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// 提示用户输入,格式示例:"36.6 C" 或 "97 F"
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System.out.print("请输入要转换的温度与单位(例如 36.6 C 或 97 F):"); |
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String input = scanner.nextLine().trim(); |
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if (input.isEmpty()) { |
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System.out.println("输入为空,程序退出。"); |
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return; |
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} |
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String[] parts = input.split("\\s+"); // 按任意空白字符分割
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try { |
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double value = Double.parseDouble(parts[0]); |
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String unit = (parts.length > 1) ? parts[1].toUpperCase() : "C"; |
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if (unit.startsWith("C")) { |
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// 从摄氏度转换为华氏度
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double f = celsiusToFahrenheit(value); |
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System.out.printf("%.1f °C = %.2f °F%n", value, f); |
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} else if (unit.startsWith("F")) { |
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// 从华氏度转换为摄氏度
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double c = fahrenheitToCelsius(value); |
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System.out.printf("%.1f °F = %.2f °C%n", value, c); |
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} else { |
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System.out.println("未知单位,请使用 C 或 F。"); |
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} |
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} catch (Exception e) { |
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System.out.println("输入解析失败,请按示例输入数值与单位,例如 \"36.6 C\""); |
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} finally { |
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scanner.close(); |
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} |
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} |
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} |
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[LocalizedFileNames] |
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ÆÁÄ»½ØÍ¼ 2026-03-08 211456.png=@ÆÁÄ»½ØÍ¼ 2026-03-08 211456,0 |
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