2021-04-14 자바 For문 (스마트인재개발원)

package day2;

import java.util.Scanner;

public class ex28for문실습 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
	Scanner sc = new Scanner(System.in);
	int result = 0;
	System.out.print("정수를 입력하세요.:");
	int input_num = sc.nextInt();
	
	
	for(int i=1; i<input_num+1; i++) {
		System.out.print(i +" ");
		result += i;
		
	}
	System.out.println();
	System.out.println(result);
	}

}

package day2;

public class ex27for반복문 {

	public static void main(String[] args) {

		for(int i=21; i<58; i++) {
			System.out.print(i + " ");
		}
		
		System.out.println();
		
		for(int i=96; i>52; i--) {
			System.out.print(i + " ");
		}
		
		System.out.println();
		
		for (int i=21; i<58; i++) {
			if (i%2 !=0) {
				System.out.print(i + " ");
			}
			
		
			
		}
		int result =0;
		for (int i=1; i<101; i ++) {
			if(i%3 ==0) {
				
			result += i;}						
		}
		System.out.println(result);
		
		
		
		
		
		
		
		
		
	}
	
	


	}