в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

Admin: 1 версия

2010-05-31T14:32:12Z

1 версия

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== InputStreamReader: close() ==



<source lang="java">

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
public class Main {
public static void main(String[] args) {
try {
char[] chars = new char[2];
chars[0] = "\u4F60";
chars[1] = "\u597D";
String encoding = "GB18030";
File textFile = new File("C:\\temp\\myFile.txt");
PrintWriter writer = new PrintWriter(textFile,encoding);
writer.write(chars);
writer.close();
// read back
InputStreamReader reader = new InputStreamReader(new FileInputStream(textFile), encoding);
char[] chars2 = new char[2];
reader.read(chars2);
System.out.print(chars2[0]);
System.out.print(chars2[1]);
reader.close();
} catch (IOException e) {
System.out.println(e.toString());
}
}
}

</source>



== new InputStreamReader(InputStream in) ==



<source lang="java">

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class MainClass {
public static void main(String args[]) {
try {
System.out.print("Enter your name: ");
InputStreamReader reader = new InputStreamReader(System.in);
BufferedReader in = new BufferedReader(reader);
String name = in.readLine();
System.out.println("Hello, " + name + ". Enter three ints...");
int[] values = new int[3];
double sum = 0.0;
for (int i = 0; i < values.length; i++) {
System.out.print("Number " + (i + 1) + ": ");
String temp = in.readLine();
values[i] = Integer.parseInt(temp);
sum += values[i];
}
System.out.println("The average equals " + sum / values.length);
} catch (IOException e) {
e.printStackTrace();
}
}
}

</source>



== new InputStreamReader(InputStream in, String charsetName) ==



<source lang="java">

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
public class MainClass {
public static void Converter(String input, String output) {
try {
FileInputStream fis = new FileInputStream(new File(input));
BufferedReader in = new BufferedReader(new InputStreamReader(fis, "SJIS"));
FileOutputStream fos = new FileOutputStream(new File(output));
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(fos, "UTF8"));
int len = 80;
char buf[] = new char[len];
int numRead;
while ((numRead = in.read(buf, 0, len)) != -1)
out.write(buf, 0, numRead);
out.close();
in.close();
} catch (IOException e) {
System.out.println("An I/O Exception Occurred: " + e);
}
}
public static void main(String args[]) {
MainClass.Converter(args[0], args[1]);
}
}

</source>

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Java by API/java.io/InputStreamReader - История изменений

в 17:43, 31 мая 2010

Admin: 1 версия