第3章：計算一個三角形的周長

/**
 * 計算一個三角形的周長。
 * 讀取三角形的三條邊：
 * 如果輸入值合法就計算這個三角形的周長，否則就顯示不合法。
 */
package Test;

import java.util.Scanner;

public class T325Scanner {
	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();
		
		System.out.println((a + b) > c && (a + c) > b && (b + c) > a
				           ? "The triangle is " + (a + b + c)
				           : "Can deges " + a + ", " + b + ", " + " and " + c + " from a triangle? false!");
	}
}