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16 changes: 12 additions & 4 deletions task01/src/com/example/task01/Task01Main.java
Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
package com.example.task01;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;

Expand All @@ -8,14 +9,21 @@ public static void main(String[] args) throws IOException {
//здесь вы можете вручную протестировать ваше решение, вызывая реализуемый метод и смотря результат
// например вот так:

/*

System.out.println(checkSumOfStream(new ByteArrayInputStream(new byte[]{0x33, 0x45, 0x01})));
*/


}

public static int checkSumOfStream(InputStream inputStream) throws IOException {
// your implementation here
return 0;
if (inputStream == null) throw new IllegalArgumentException();

int checkSum = 0;
int byteValue;

while((byteValue = inputStream.read()) != -1){
checkSum = Integer.rotateLeft(checkSum, 1) ^ byteValue;
}
return checkSum;
}
}
31 changes: 31 additions & 0 deletions task02/src/com/example/task02/Task02Main.java
Original file line number Diff line number Diff line change
Expand Up @@ -9,5 +9,36 @@ public static void main(String[] args) throws IOException {
// - направить стандартный вывод программы в файл output.test
// - запустить программу
// - и сравнить получившийся файл output.test с expected.test

int currentByte;
boolean lastWasCR = false;

while((currentByte = System.in.read()) != -1){
if(lastWasCR){
if(currentByte == 10){
System.out.write(10);
lastWasCR = false;
}
else if (currentByte != 13){
System.out.write(13);
System.out.write(currentByte);
lastWasCR = false;
}
else {
System.out.write(13);
}

}
else {
if(currentByte == 13){
lastWasCR = true;
}
else {
System.out.write(currentByte);
}
}
}
if (lastWasCR) System.out.write(13);
System.out.flush();
}
}
16 changes: 12 additions & 4 deletions task03/src/com/example/task03/Task03Main.java
Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
package com.example.task03;

import java.io.IOException;
import java.io.InputStream;
import java.io.*;
import java.nio.charset.Charset;

public class Task03Main {
Expand All @@ -15,7 +14,16 @@ public static void main(String[] args) throws IOException {
}

public static String readAsString(InputStream inputStream, Charset charset) throws IOException {
// your implementation here
return "";
if(inputStream == null || charset == null) throw new IllegalArgumentException();

BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, charset));
StringBuilder stringBuilder = new StringBuilder();

String line;
while ((line = reader.readLine()) != null){
stringBuilder.append(line);
}

return stringBuilder.toString();
}
}
20 changes: 15 additions & 5 deletions task04/src/com/example/task04/Task04Main.java
Original file line number Diff line number Diff line change
@@ -1,14 +1,24 @@
package com.example.task04;

import java.io.IOException;
import java.util.Locale;
import java.util.Scanner;

public class Task04Main {
public static void main(String[] args) throws IOException {
// чтобы протестировать свое решение, вам нужно:
// - направить файл input.test в стандартный ввод программы (в настройках запуска программы в IDE или в консоли)
// - запустить программу
// - проверить, что получилось 351.731900
Scanner scanner = new Scanner(System.in);
double sum = 0.0;

System.out.println("0.0");
while (scanner.hasNext()) {
String token = scanner.next();
try {
double number = Double.parseDouble(token);
sum += number;
} catch (NumberFormatException e) {

}
}

System.out.printf(Locale.US, "%.6f", sum);
}
}