Ex6_4 코드

package org.javaro.lecture; public class Ex6_4 { public static void main(String[] args) { System.out.println("조병수 "+"20191010"+"-"+"함수"); double x,y,area; int idx; x = 10; y =20; idx = 1; area = fn_area(idx,x,y); System.out.println("4각형 면적 = "+area); idx = 2; area = fn_area(idx, x, y); System.out.println("3각형 면적 = "+area); } static double fn_area(int a, double b, double c) { double result = 0; if(a==1) { result = b*c; }else if(a ==2 ) { result = 0.5*b*c; } return result; } }

실행창

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