выдает ошибку "сложение работает неверно" Что не так?
package com.javarush.task.task19.task1914;
/*
Решаем пример
*/
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
public class Solution {
public static TestString testString = new TestString();
public static void main(String[] args) {
PrintStream consoleSave = System.out;
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
PrintStream stream = new PrintStream(outputStream);
System.setOut(stream);
testString.printSomething();
String result = outputStream.toString();
System.setOut(consoleSave);
String[] array = result.split(" ");
int a = Integer.parseInt(array[0]);
int b = Integer.parseInt(array[2]);
int c = 0;
if(array[1].equals("+")){
c = a + b;
}
else if(array[1].equals("-")){
c = a - b;
}
else if(array[1].equals("*")){
c = a * b;
}
System.out.println(result.substring(0,result.length()-2) + c);
}
public static class TestString {
public void printSomething() {
System.out.println("3 + 6 = ");
}
}
}