Java语言程序设计基础篇编程练习题2.15示例代码

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import java.util.Scanner;
public class Test2_15 {
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.print("Enter x1 and y1: ");
		double x1 = input.nextDouble();
		double y1 = input.nextDouble();
		System.out.print("Enter x2 ang y2: ");
		double x2 = input.nextDouble();
		double y2 = input.nextDouble();
		input.close();
		double d1 = Math.pow((x2 - x1),2);
		double d2 = Math.pow((y2 - y1),2);
		double distance = Math.pow(d1 + d2, 0.5);
		System.out.println("The distance between the points is " + distance);
	}
}