Java:纠错码计算器
如何在线纠错
char oper = entrada.next(); //ERROR HERE
代码:
/*
* Calculator
*/
package list01;
import java.util.Scanner;
public class ex04 {
public void metodoEx04() {
Scanner entrada = new Scanner(System.in);
System.out.print("First number: ");
int A = entrada.nextInt();
System.out.print("Second number: ");
int B = entrada.nextInt();
System.out.print("Operator +, -, *, ou /: ");
char oper = entrada.next(); //ERROR HERE
double res = calculadora(A, B, oper);
System.out.println(res);
}
static double calculadora(int n1, int n2, char operador) {
double res;
switch (operador) {
case '+':
res = soma(n1, n2);
return res;
case '-':
res = subtracao(n1, n2);
return res;
case '*':
res = multiplicacao(n1, n2);
return res;
default:
res = divisao(n1, n2);
return res;
}
}
static double soma(int num1, int num2) {
double res;
res = num1 + num2;
return res;
}
static double subtracao(int num1, int num2) {
double res;
res = num1 - num2;
return res;
}
static double multiplicacao(int num1, int num2) {
double res;
res = num1 * num2;
return res;
}
static double divisao(int num1, int num2) {
double res;
if (num2 != 0) {
res = num1 / num2;
return res;
} else {
System.out.println("Impossible.");
return 0.0;
}
}
}
# 1 楼答案
next()
正在返回一个String
对象,如果要存储字符,需要:以后发布错误时,请发布实际错误
# 2 楼答案
接下来给出一个字符串,您需要一个字符。你可以试试