LearnJava

IOStream_IOStream.iml

<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
  <component name="NewModuleRootManager" inherit-compiler-output="true">
    <exclude-output />
    <content url="file://$MODULE_DIR$">
      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
    </content>
    <orderEntry type="inheritedJdk" />
    <orderEntry type="sourceFolder" forTests="false" />
  </component>
</module>

IOStream_src_ru_fearofcode_learn_io_BufferedFileInput.java

package ru.fearofcode.learn.io;

import java.io.BufferedInputStream;
import java.io.FileInputStream;

/**
 * Created by maks on 6/16/2017.
 */
public class BufferedFileInput {
    public static void main(String[] args) {
        long timeStart = System.currentTimeMillis();

        FileInputStream isFile = null;
        BufferedInputStream buff = null;
        try {
            isFile = new FileInputStream(Settings.nameFile);
            buff = new BufferedInputStream(isFile);
            for (int i = 0; i < Settings.interactional; i++){
                System.out.print(buff.read());
            }
        }catch(Exception e){
            System.out.println("\nCould not read file: " + e.toString());
        }finally{
            try{
                if (isFile != null) isFile.close();
                if (buff != null)   buff.close();
            }catch(Exception e){
                e.printStackTrace();
            }
        }

        long timeFinish = System.currentTimeMillis();
        System.out.println("\nTime of work " + BufferedFileInput.class + " " + (timeFinish - timeStart) / 1000 + " second");
    }
}

IOStream_src_ru_fearofcode_learn_io_FileInput.java

package ru.fearofcode.learn.io;

import java.io.FileInputStream;
/**
 * Created by maks on 6/16/2017.
 */
public class FileInput {
    public static void main(String[] args) {
        long timeStart = System.currentTimeMillis();

        FileInputStream isFile = null;
        try {
            isFile = new FileInputStream(Settings.nameFile);
            for (int i = 0; i < Settings.interactional; i++){
                System.out.print(isFile.read());
            }
        }catch(Exception e){
            System.out.println("\nCould not read in file: " + e.toString());
        }finally{
            try{
                isFile.close();
            }catch(Exception e){
                e.printStackTrace();
            }
        }

        long timeFinish = System.currentTimeMillis();
        System.out.println("\nTime of work " + FileInput.class + " " + (timeFinish - timeStart) / 1000 + " second");
    }
}

IOStream_src_ru_fearofcode_learn_io_FileOutput.java

package ru.fearofcode.learn.io;

import java.io.FileOutputStream;
/**
 * Created by maks on 6/16/2017.
 */
public class FileOutput {
    public static void main(String[] args) {
        long timeStart = System.currentTimeMillis();

        FileOutputStream osFile = null;
        try {
            osFile = new FileOutputStream(Settings.nameFile);
            for (int i = 0; i < Settings.interactional; i++){
                osFile.write((int)(Math.random()*255));
            }
        }catch(Exception e){
            System.out.println("Could not write to a file: " + e.toString());
        }finally{
            if (osFile != null)
            try{
                osFile.close();
            }catch(Exception e){
                e.printStackTrace();
            }
        }
        long timeFinish = System.currentTimeMillis();
        System.out.println("Time of work "+ FileOutput.class + " " + (timeFinish - timeStart) / 1000 + " second");
    }
}

IOStream_src_ru_fearofcode_learn_io_Settings.java

package ru.fearofcode.learn.io;

/**
 * Created by maks on 6/16/2017.
 */
public class Settings {
    static final int interactional = 20000000;
    static final String nameFile = "file.txt";
}