Example usage for java.io InputStreamReader InputStreamReader

Introduction

In this page you can find the example usage for java.io InputStreamReader InputStreamReader.

Prototype

public InputStreamReader(InputStream in)

Source Link

Document

Creates an InputStreamReader that uses the default charset.

Usage

From source file:StreamTokenApp.java

public static void main(String args[]) throws IOException {
    BufferedReader inData = new BufferedReader(new InputStreamReader(System.in));
    StreamTokenizer inStream = new StreamTokenizer(inData);
    inStream.commentChar('#');
    boolean eof = false;
    do {/*from ww w.j  a v a 2  s .  co m*/
        int token = inStream.nextToken();
        switch (token) {
        case inStream.TT_EOF:
            System.out.println("EOF encountered.");
            eof = true;
            break;
        case inStream.TT_EOL:
            System.out.println("EOL encountered.");
            break;
        case inStream.TT_WORD:
            System.out.println("Word: " + inStream.sval);
            break;
        case inStream.TT_NUMBER:
            System.out.println("Number: " + inStream.nval);
            break;
        default:
            System.out.println((char) token + " encountered.");
            if (token == '!')
                eof = true;
        }
    } while (!eof);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream is = new FileInputStream("c:/test.txt");

    InputStreamReader isr = new InputStreamReader(is);

    BufferedReader br = new BufferedReader(isr);

    br.close();//from  w w w .j a v a  2s  . c  o m

    // creates error
    br.read();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream is = new FileInputStream("c:/test.txt");

    InputStreamReader isr = new InputStreamReader(is);

    BufferedReader br = new BufferedReader(isr);

    int value = 0;
    while ((value = br.read()) != -1) {
        char c = (char) value;
        System.out.println(c);/*from www .  java2 s.c  om*/
    }
}

From source file:MainClass.java

public static void main(String[] av) throws IOException {
    StreamTokenizer tf = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
    String s = null;/*from w  ww.  j a va2  s  .c  o m*/
    int i;

    while ((i = tf.nextToken()) != StreamTokenizer.TT_EOF) {
        switch (i) {
        case StreamTokenizer.TT_EOF:
            System.out.println("End of file");
            break;
        case StreamTokenizer.TT_EOL:
            System.out.println("End of line");
            break;
        case StreamTokenizer.TT_NUMBER:
            System.out.println("Number " + tf.nval);
            break;
        case StreamTokenizer.TT_WORD:
            System.out.println("Word, length " + tf.sval.length() + "->" + tf.sval);
            break;
        default:
            System.out.println("What is it? i = " + i);
        }
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {

    InputStream is = new FileInputStream("c:/test.txt");

    InputStreamReader isr = new InputStreamReader(is);

    BufferedReader br = new BufferedReader(isr);

    boolean bool = false;

    bool = br.markSupported();/*w w w  .  ja  v a  2 s  .  co m*/

    System.out.println("Buffered reader supports mark : " + bool);

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream is = new FileInputStream("c:/test.txt");

    InputStreamReader isr = new InputStreamReader(is);

    BufferedReader br = new BufferedReader(isr);

    char[] cbuf = new char[is.available()];

    br.read(cbuf, 2, 10);/*from   w  w  w.ja  va2  s. com*/

    for (char c : cbuf) {
        if (c == (char) 0) {
            c = '*';
        }
        // prints characters
        System.out.print(c);
    }
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    // new input stream reader is created
    FileInputStream fis = new FileInputStream("C:/test.txt");
    InputStreamReader isr = new InputStreamReader(fis);

    // the name of the character encoding returned
    String s = isr.getEncoding();
    System.out.print("Character Encoding: " + s);
    isr.close();/*from  www. ja v a 2 s.co  m*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    InputStream is = new FileInputStream("c:/test.txt");

    InputStreamReader isr = new InputStreamReader(is);

    BufferedReader br = new BufferedReader(isr);

    System.out.println((char) br.read());
    System.out.println((char) br.read());

    br.mark(26);//from www  .  ja  va2s  .  c o  m
    System.out.println("mark() invoked");
    System.out.println((char) br.read());
    System.out.println((char) br.read());

    br.reset();
    System.out.println("reset() invoked");
    System.out.println((char) br.read());
    System.out.println((char) br.read());

}

From source file:Main.java

public static void main(String argv[]) throws Exception {
    String line;//from ww w.ja v a2 s  .c  o  m
    Process p = Runtime.getRuntime().exec("psql -U username -d dbname -h serverhost -f scripfile.sql");
    BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
    while ((line = input.readLine()) != null) {
        System.out.println(line);
    }
    input.close();
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    URL u = new URL(args[0]);
    URLConnection uc = u.openConnection();
    BufferedReader br = new BufferedReader(new InputStreamReader(uc.getInputStream()));
    String s = br.readLine();//from  w ww  .ja  v  a 2 s  .  c  o  m
    while (s != null) {
        System.out.println(s);
        s = br.readLine();
    }
}