第3章：驗證三角形的有效

/**
 * 驗證三角形的有效性。
 * 讀取三角形的三條邊，並確定輸入是否有效。
 * 任意兩條邊的和大於第三條邊則輸入有效。
 */
package Test;

import java.util.Scanner;

public class T319Scanner {
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.print("Enter three edges: ");
		double a = input.nextDouble();
		double b = input.nextDouble();
		double c = input.nextDouble();
		
		boolean even = ((a + b) > c && (a + c) > b && (b + c) > a);
		System.out.println((even == true) ? "Can deges " + a + ", " + b + ", " + " and " + c + " from a triangle?" + even
				: "Can deges " + a + ", " + b + ", " + " and " + c + " from a triangle?" + even);
		
	}

}