Example usage for java.io FileReader FileReader

Introduction

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

Prototype

public FileReader(FileDescriptor fd)

Source Link

Document

Creates a new FileReader , given the FileDescriptor to read, using the platform's java.nio.charset.Charset#defaultCharset() default charset .

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    LineNumberReader r = new LineNumberReader(new FileReader("yourFile.txt"));

    String line = null;/*  w  w w .  j  ava 2  s. c om*/

    while ((line = r.readLine()) != null) {
        System.out.println(r.getLineNumber() + ": " + line);
    }
    r.close();
}

From source file:FileReaderDemo.java

public static void main(String args[]) throws IOException {
    FileReader fr = new FileReader("FileReaderDemo.java");
    BufferedReader br = new BufferedReader(fr);
    String s;//from   www  .j  a v a  2  s  .  c  om

    while ((s = br.readLine()) != null) {
        System.out.println(s);
    }

    fr.close();
}

From source file:StreamTokenizerExample.java

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

    Reader r = new FileReader("in.txt");
    StreamTokenizer st = new StreamTokenizer(r);
    while (st.nextToken() != StreamTokenizer.TT_EOF) {
        System.out.println(st.sval);
    }//from  w  w  w  . j ava 2s  . co m
    r.close();
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    FileReader fr = new FileReader(args[0]);
    BufferedReader br = new BufferedReader(fr);
    StreamTokenizer st = new StreamTokenizer(br);
    st.eolIsSignificant(true);/*  w  ww  .j a  v  a  2s . c o  m*/
    int lines = 1;

    while (st.nextToken() != StreamTokenizer.TT_EOF) {
        switch (st.ttype) {
        case StreamTokenizer.TT_EOL:
            ++lines;
        }
    }
    System.out.println("There are " + lines + " lines");
    fr.close();
}

From source file:MainClass.java

public static void main(String args[]) {
    try {/*  w  ww .  ja v a 2 s.  c om*/
        FileReader fr = new FileReader(args[0]);
        BufferedReader br = new BufferedReader(fr);

        String s;
        while ((s = br.readLine()) != null)
            System.out.println(s);

        fr.close();
    } catch (Exception e) {
        System.out.println("Exception: " + e);
    }
}

From source file:LineViewer.java

public static void main(String[] args) throws Exception {
    LineNumberReader lnr = null;/*  w ww.j a  va2s.  c o m*/

    FileReader fr = new FileReader(args[0]);
    lnr = new LineNumberReader(fr);

    String s;
    while ((s = lnr.readLine()) != null)
        System.out.println(lnr.getLineNumber() + ": " + s);
}

From source file:Main.java

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

    FileReader fr = new FileReader("C:/test.txt");
    LineNumberReader lnr = new LineNumberReader(fr);

    // set current line number
    lnr.setLineNumber(100);//from ww w. j av  a 2  s .  c o  m
    System.out.println("setLineNumber(100) is invoked");

    // get current line number
    int i = lnr.getLineNumber();
    System.out.print("Current line number: " + i);
    lnr.close();
}

From source file:LineNumberIOApp.java

public static void main(String args[]) throws IOException {
    FileReader inFile = new FileReader("LineNumberIOApp.java");
    LineNumberReader inLines = new LineNumberReader(inFile);
    String inputLine;//from  w w  w.j  a v  a  2  s  .  c  o  m
    while ((inputLine = inLines.readLine()) != null) {
        System.out.println(inLines.getLineNumber() + ". " + inputLine);
    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    FileReader fr = new FileReader(args[0]);
    BufferedReader br = new BufferedReader(fr);
    StreamTokenizer st = new StreamTokenizer(br);
    st.whitespaceChars(',', ',');
    while (st.nextToken() != StreamTokenizer.TT_EOF) {
        switch (st.ttype) {
        case StreamTokenizer.TT_WORD:
            System.out.println(st.lineno() + ") " + st.sval);
            break;
        case StreamTokenizer.TT_NUMBER:
            System.out.println(st.lineno() + ") " + st.nval);
            break;
        default:/*from   ww  w  . j  a  v a2  s.  c om*/
            System.out.println(st.lineno() + ") " + (char) st.ttype);
        }
    }
    fr.close();
}

From source file:Main.java

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

    FileReader fr = new FileReader("C:/test.txt");
    LineNumberReader lnr = new LineNumberReader(fr);

    // sets the current line number
    lnr.setLineNumber(100);//from   ww w . j a  v  a  2s.  com

    // get the current line number
    int i = lnr.getLineNumber();

    // print the current line number
    System.out.print("Current line number: " + i);
    lnr.close();
}