package variable; public class jar21 { public static void main(String[] args) { int num1=50; int num2=15; char op='*'; System.out.println(cal(num1,num2,op)); } public static int cal(int num1, int num2, char op) { if(op=='+') { return num1+num2; }else if(op=='-') { return num1-num2; }else if(op=='*') { return num1*num2; }else { return num1/num2; } } }

package JavaFestival; import java.util.Scanner; public class jar20 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print("정수 입력 : "); int a = sc.nextInt(); int num=0; while(true) { num+=a%10; a/=10; if(a/10==0) { num+=a%10; break; } } System.out.println("합은 "+num+"입니다."); } }

package JavaFestival; import java.util.Scanner; public class jar19 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print("n 입력 : "); int n = sc.nextInt(); int a=1; for(int i=0; i

package JavaFestival; import java.util.Scanner; public class jar18 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int N=sc.nextInt(); int[][] array = new int[N][N]; for(int i=0; i

package JavaFestival; public class jar17 { public static void main(String[] args) { String score = "A,A,B,C,D,A,C,D,D,D,F"; int a=0; int b=0; int c=0; int d=0; int f=0; String[] score2 = score.split(","); for(int i=0; i