摄氏温度与华氏温度转换

[java]代码库

import java.util.Scanner;

/**
 * 摄氏温度与华氏温度转换
 * 
 */
public class SwitchTest {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		while (true) {
			System.out.println("请输入要转换的温度类型：C(C转F) 或 F(F转C)");
			String s = sc.next().trim();
			if ("c".equalsIgnoreCase(s)) {
				// 做摄氏向华摄的转换
				System.out.println("请输入要转换摄氏的温度:..");
				double db = sc.nextDouble();
				double db2 = (db * 9 / 5) + 32;
				System.out.println("对应的华氏温度：" + db2 + "F");
			} else if ("f".equalsIgnoreCase(s)) {
				// 做华摄向摄氏的转换
				System.out.println("请输入要转换华氏的温度:..");
				double db = sc.nextDouble();
				double db2 = (db - 32) * 5 / 9;
				System.out.println("对应的摄氏温度：" + Math.round(db2) + "C");
			} else if ("exit".equalsIgnoreCase(s)) {
				break;
			}
		}
	}

}

[代码运行效果截图]