java语言程序设计(基础篇)第十版编程练习题[2.10]

(科学：计算能量)编写程序，计算将水从初始温度加热到最终温度所需的能量。程序应该提示
用户输人水的重量(以千克为单位)，以及水的初始温度和最终温度。计算能量的公式是：

Q = M × (最终温度 - 初始温度）X 4184

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package dome2_10;

import java.util.Scanner;

/**
 *
 * @author Administrator
 */
public class Dome2_10 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner in = new Scanner(System.in);
        System.out.print("Enter the amount of water in kilograms:");
        double water = in.nextDouble();
        System.out.print("Enter the initial temperature:");
        double initialtemperature = in.nextDouble();
        System.out.print("Enter the final temperature:");
        double finaltemperature = in.nextDouble();
        double energy = water * (finaltemperature - initialtemperature) * 4184;
        System.out.println("The energy needed is " + energy);
    }
    
}

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