method

1. method의 정의

public class Method {
	public static void main (String[] args) {
		
		System.out.println ("프로그램의 시작");
		
		hiEveryone(26);
		hiEveryone(30);
		
		System.out.println ("프로그램의 끝");
	}
	
	public static void hiEveryone (int age) {
		
		System.out.println("좋은 아침입니다");
		System.out.println("제 나이는 " + age + "세 입니다");
	}
}

2. method값의 반환

public class Method_value {
	public static void main (String[] args) {
		
		int result;
		result = adder (4, 5);
		
		System.out.println ("4 + 5 = " + result);
		System.out.println ("3.5 x 3.5 = " + square(3.5));
		
	}
	
	public static int adder (int num1, int num2) {
		
		int addResult = num1 + num2;
		return addResult;
	}
	
	public static double square (double num) {
		return num * num;
	}
}