개발일지📝

import java.util.Scanner; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); //45 + if (b >= 45) { b-=45; System.out.printf("%d %d", a ,b); } else if (a == 0) { a += 23; b = (60+b)-45; System.out.printf("%d %d", a ,b); } else { a -= 1; b = (60+b)-45; System.out.printf("%d %d", a ,b); } } } 조건만 잘 생각해서 코딩해주면 ..

import java.util.Scanner; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); //++ 1 if ( a >0 && b >0) System.out.printf("1"); //-+ 2 else if ( a 0) System.out.printf("2"); // -- 3 else if ( a 0 && b

import java.util.Scanner; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); int a = sc.nextInt(); if (a%4 == 0){ //4의배수이고 if (a%100 != 0){ System.out.printf("1"); } else if (a%400 == 0){ System.out.printf("1"); } else { System.out.printf("0"); } } else System.out.printf("0"); } }​ import java.util.Scanner; public class Main { public static void main..

import java.util.Scanner; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); int a = sc.nextInt(); if (a=90) System.out.printf("A"); else if (a=80) System.out.printf("B"); else if (a=70) System.out.printf("C"); else if (a=60) System.out.printf("D"); else System.out.printf("F"); } }

import java.util.Scanner; public class Main { public static void main(String[] args){ Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); if (a>b) { System.out.printf(">"); } else if (a

import java.util.Scanner; public class Main{ public static void main(String[] args){ int a,b; Scanner sc = new Scanner(System.in); a = sc.nextInt(); b = sc.nextInt(); sc.close(); System.out.println(a*(b%10)); System.out.println(a*(b/10%10)); System.out.println(a*(b/100)); System.out.println(a*b); } } 자릿수 빼오기 나머지연산자랑 나누기를 이용해서 하나하나 자릿수를 빼와서 연산한다

import java.util.Scanner; public class Main{ public static void main(String[] args){ int A,B,C; Scanner sc = new Scanner(System.in); A = sc.nextInt(); B = sc.nextInt(); C = sc.nextInt(); sc.close(); System.out.println((A+B)%C); System.out.println((A%C+B%C)%C); System.out.println((A*B)%C); System.out.println((A%C*B%C)%C); } }

import java.util.Scanner; public class Main{ public static void main(String[] args){ int a,b; Scanner sc = new Scanner(System.in); a = sc.nextInt(); b = sc.nextInt(); sc.close(); System.out.println(a+b); System.out.println(a-b); System.out.println(a*b); System.out.println(a/b); System.out.println(a%b); } }

import java.util.Scanner; public class Main{ public static void main(String[] args){ double a,b; Scanner sc = new Scanner(System.in); a = sc.nextDouble(); b = sc.nextDouble(); sc.close(); System.out.println(a/b); } }

import java.util.Scanner; public class Main{ public static void main(String[] args){ int a,b; Scanner sc = new Scanner(System.in); a = sc.nextInt(); b = sc.nextInt(); sc.close(); System.out.println(a*b); } }