Валидатор поржать решил? Че не так-то?
package com.javarush.task.task19.task1912;
/*
Ридер обертка 2
*/
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
public class Solution {
public static TestString testString = new TestString();
public static void main(String[] args) {
PrintStream consoleStream = new PrintStream(System.out);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
PrintStream newPS = new PrintStream(outputStream);
System.setOut(newPS);
testString.printSomething();
System.setOut(consoleStream);
String res = outputStream.toString().replaceAll("te", "??");
System.out.println(res);
}
public static class TestString {
public void printSomething() {
System.out.println("it's a text for testing");
}
}
}