뭐가 문제인지 궁금합니다..

dhje Reply 6 years 36 weeks ago
import java.math.*; import java.util.Scanner; public class Main13_c { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int T = sc.nextInt(); for (int t = 0; t < T; t++) { Rational r1 = new Rational(new BigInteger(sc.next()), new BigInteger(sc.next())); Rational r2 = new Rational(new BigInteger(sc.next()), new BigInteger(sc.next())); //이 두 줄 에러 뜹니다 System.out.println(r1 + " + " + r2 + " = " + r1.add(r2)); System.out.println(r1 + " - " + r2 + " = " + r1.subtract(r2)); System.out.println(r1 + " * " + r2 + " = " + r1.multiply(r2)); System.out.println(r1 + " / " + r2 + " = " + r1.divide(r2)); //여기서는 함수들이 인식이 안됩니다 } } } class Rational { Rational(){ } BigInteger Rational(BigInteger a, BigInteger b) { return a.divide(b); } } 뭐가 문제일까요.... 에러가 많이 떠서 아직 제출은 안했습니다.
onacloud Reply 6 years 35 weeks ago
아래 코드를 참조하세요. (그냥 참조입니다) import java.util.Scanner; import java.math.BigInteger; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int T = sc.nextInt(); for (int t = 0; t < T; t++) { Rational r1 = new Rational(new BigInteger(sc.next()), new BigInteger(sc.next())); Rational r2 = new Rational(new BigInteger(sc.next()), new BigInteger(sc.next())); //이 두 줄 에러 뜹니다 System.out.println(r1 + " + " + r2 + " = " + r1.add(r2)); //여기서는 함수들이 인식이 안됩니다 } } } class Rational { BigInteger a; BigInteger b; public Rational(){ } public Rational(BigInteger a, BigInteger b) { this.a = a; this.a = a; } public Rational add(Rational a) { return new Rational(); } }