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Copy pathSolution.java
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180 lines (140 loc) · 6.63 KB
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//Jesus answered, "My Kingdom is not of this world. If my Kingdom were of this world, then my servants would fight, that I wouldn't be delivered to the Jews. But now my Kingdom is not from here." (John 18:36)
package com.javarush.task.task20.task2004;
import java.io.*;
import java.util.Properties;
/*
Читаем и пишем в файл статики
*/
public class Solution {
public static void main(String[] args) {
try {
File your_file_name = new File("E:\\5.txt");
OutputStream outputStream = new FileOutputStream(your_file_name);
InputStream inputStream = new FileInputStream(your_file_name);
ClassWithStatic classWithStatic = new ClassWithStatic();
classWithStatic.i = 3;
classWithStatic.j = 4;
classWithStatic.save(outputStream);
outputStream.flush();
ClassWithStatic loadedObject = new ClassWithStatic();
loadedObject.staticString = "something";
loadedObject.i = 6;
loadedObject.j = 7;
loadedObject.load(inputStream);
outputStream.close();
inputStream.close();
System.out.println(ClassWithStatic.staticString);
System.out.println(loadedObject.i);
System.out.println(loadedObject.j);
} catch (IOException e) {
System.out.println("Oops, something wrong with my file");
} catch (Exception e) {
e.printStackTrace();
System.out.println("Oops, something wrong with save/load method");
}
}
public static class ClassWithStatic {
public static String staticString = "it's test static string";
public int i;
public int j;
public void save(OutputStream outputStream) throws Exception {
PrintWriter printWriter = new PrintWriter(outputStream);
printWriter.println(staticString);
printWriter.println(i);
printWriter.println(j);
printWriter.close();
}
public void load(InputStream inputStream) throws Exception {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
ClassWithStatic.staticString = bufferedReader.readLine();
this.i = Integer.parseInt(bufferedReader.readLine());
this.j = Integer.parseInt(bufferedReader.readLine());
bufferedReader.close();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ClassWithStatic that = (ClassWithStatic) o;
if (i != that.i) return false;
return j == that.j;
}
@Override
public int hashCode() {
int result = i;
result = 31 * result + j;
return result;
}
}
/*
Читаем и пишем в файл статики
Реализуй логику записи в файл и чтения из файла для класса ClassWithStatic.
Метод load должен инициализировать объект включая статические поля данными из файла.
Метод main не участвует в тестировании.
Требования:
1. Должна быть реализована возможность сохранения/загрузки объектов типа Solution.ClassWithStatic с помощью методов save/load.
2. Класс Solution не должен поддерживать интерфейс Serializable.
3. Класс Solution.ClassWithStatic не должен поддерживать интерфейс Serializable.
4. Класс Solution.ClassWithStatic должен быть публичным.
5. Класс Solution.ClassWithStatic не должен поддерживать интерфейс Externalizable.
package com.javarush.task.task20.task2004;
import java.io.*;
*
Читаем и пишем в файл статики
*
public class Solution {
public static void main(String[] args) {
//you can find your_file_name.tmp in your TMP directory or fix outputStream/inputStream according to your real file location
//вы можете найти your_file_name.tmp в папке TMP или исправьте outputStream/inputStream в соответствии с путем к вашему реальному файлу
try {
File your_file_name = File.createTempFile("your_file_name", null);
OutputStream outputStream = new FileOutputStream(your_file_name);
InputStream inputStream = new FileInputStream(your_file_name);
ClassWithStatic classWithStatic = new ClassWithStatic();
classWithStatic.i = 3;
classWithStatic.j = 4;
classWithStatic.save(outputStream);
outputStream.flush();
ClassWithStatic loadedObject = new ClassWithStatic();
loadedObject.staticString = "something";
loadedObject.i = 6;
loadedObject.j = 7;
loadedObject.load(inputStream);
//check here that classWithStatic object equals to loadedObject object - проверьте тут, что classWithStatic и loadedObject равны
outputStream.close();
inputStream.close();
} catch (IOException e) {
//e.printStackTrace();
System.out.println("Oops, something wrong with my file");
} catch (Exception e) {
//e.printStackTrace();
System.out.println("Oops, something wrong with save/load method");
}
}
public static class ClassWithStatic {
public static String staticString = "it's test static string";
public int i;
public int j;
public void save(OutputStream outputStream) throws Exception {
//implement this method - реализуйте этот метод
}
public void load(InputStream inputStream) throws Exception {
//implement this method - реализуйте этот метод
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ClassWithStatic that = (ClassWithStatic) o;
if (i != that.i) return false;
return j == that.j;
}
@Override
public int hashCode() {
int result = i;
result = 31 * result + j;
return result;
}
}
}
*/