KA's Regalo

//국어 80, 영어 75, 수학 90

//합계와 평균을 구하시오

//학점 -> 평균>=90 : A학점, >=80 : B학점, >=70 : C학점, >=60 : D학점, 나머지 F학점(과락) 재시험 응시하세요

int kor = Integer.parseInt(args[0]);

int eng = Integer.parseInt(args[1]);

int math = Integer.parseInt(args[2]);

int sum = kor+eng+math;

double avg = 100*sum/3/100.0;

char result;

//System.out.println("-------학생 성적 관리 프로그램-------");

System.out.println("국어\t영어\t수학\t합계\t평균");

System.out.println("-------------------------------------");

System.out.println(kor+"\t"+eng+"\t"+math+"\t"+sum+"\t"+avg);

System.out.println("-------------------------------------");

System.out.println("학점 : "+result+"학점");

//2e1+2e2+2e3+2e4+...+2e10=?

//2+(2*2)+(2*2*2)+(2*2*2*2)

int i=2;

int sum=0;

int count=0;

boolean b=true;

for(int j=1;j<11;j++){

System.out.print(i+"e"+j);

if(j<10){

System.out.print("+");

}

}

while(b){

i *= 2;

sum += i;

count++;

if(count>=9){

b = false;

}

}

System.out.println("="+(sum+1));

char ch = 65;            // 'A' , 'a'는 97

while(ch<91){        // 'Z' 까지

System.out.print(ch);

if(ch<90){

System.out.print(", ");

}

ch++;

}

System.out.println();

char ch = 97;

int count = 0;

while(ch<=(int)'z'){

System.out.print(ch+" ");

count++;

if(count%5==0){

System.out.println();

}

ch++;

}

System.out.println();

for(int i=0;i<6;i++){

for(int j=1;j<=5;j++){

if(j+i*5<=26){

System.out.print((char)((j+i*5)+96)+" ");

}

}

System.out.println();

}

int limit=4;

for(int a=1;a<=3;a++){

for(int b=1;b<5;b++){

if(b<limit){

System.out.print(' ');

}else{

System.out.print('*');

}

}

for(int b=1;b<a;b++){

System.out.print('*');

}

limit--;

System.out.println();

}

int tmp=0;

for(int a=1;a<=3;a++){

for(int b=1;b<=5;b++){

if(b<3-tmp){

System.out.print(' ');

}else if(b>3+tmp){

System.out.print(' ');

}else{

System.out.print('*');

}

}

tmp++;

System.out.println();

}