Java语言程序设计基础篇编程练习题2.10示例代码

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import java.util.Scanner;

public class Test2_10 {
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.print("Enter the amount of water in kilograms: ");
		double m = input.nextDouble();
		System.out.print("Enter the initial temperature: ");
		double inT = input.nextDouble();
		System.out.print("Enter the final temperature: ");
		double finalT = input.nextDouble();
		input.close();
		
		double Q = m * (finalT - inT) * 4184;
		
		System.out.println("The energy needed is " + Q);
	}
}