Идеи?
package com.javarush.task.task19.task1911;
/*
Ридер обертка
*/
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
public class Solution {
public static TestString testString = new TestString();
public static void main(String[] args) {
PrintStream systemOut = System.out;
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
PrintStream printStream = new PrintStream(byteArrayOutputStream);
System.setOut(printStream);
testString.printSomething();
System.setOut(systemOut);
System.out.println(new String(byteArrayOutputStream.toByteArray()).toUpperCase());
}
public static class TestString {
public void printSomething() {
System.out.println("it's a text for testing");
}
}
}