Example usage for java.io BufferedReader readLine

Introduction

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

Prototype

public String readLine() throws IOException

Source Link

Document

Reads a line of text.

Usage

From source file:Main.java

public static void main(String args[]) throws Exception {
    File file = new File(".");

    if (file.isDirectory()) {
        String[] files = file.list();
        for (int i = 0; i < files.length; i++)
            System.out.println(files[i]);
    } else {/*from   w  w w .j a  va  2 s  . co m*/
        FileReader fr = new FileReader(file);
        BufferedReader in = new BufferedReader(fr);
        String line;
        while ((line = in.readLine()) != null)
            System.out.println(line);
    }
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    String s;//from w  w w  .j a  v a  2 s .  com
    while ((s = in.readLine()) != null && s.length() != 0)
        System.out.println(s);
    // An empty line or Ctrl-Z terminates the program
}

From source file:Main.java

public static void main(String argv[]) throws Exception {
    String line;//from www . java  2  s  . com
    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 {
    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("keyfile"));
    DESKeySpec ks = new DESKeySpec((byte[]) ois.readObject());
    SecretKeyFactory skf = SecretKeyFactory.getInstance("DES");
    SecretKey key = skf.generateSecret(ks);

    Cipher c = Cipher.getInstance("DES/CFB8/NoPadding");
    c.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec((byte[]) ois.readObject()));
    CipherInputStream cis = new CipherInputStream(new FileInputStream("ciphertext"), c);
    BufferedReader br = new BufferedReader(new InputStreamReader(cis));
    System.out.println(br.readLine());
}

From source file:InputOutputDemoStandardInputOutput.java

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

    //Write characters to standard output and standard error:
    System.out.println("std output");
    System.err.println("std error");
    //Read characters from standard input (the keyboard):
    System.out.print("Type some characters and press Enter: ");
    BufferedReader bisr = new BufferedReader(new InputStreamReader(System.in));
    String response = bisr.readLine();
    System.out.println("You typed: '" + response + "'");
    //Read a byte from standard input (the keyboard):
    System.out.print("Type one character and press Enter: ");
    byte b = (byte) System.in.read();
    System.out.println("First byte of your input is: " + b);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String srcFile = "test.txt";
    BufferedReader br = new BufferedReader(new FileReader(srcFile));
    String text = null;// w  w  w .  j  a  v  a2 s  .c om

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

From source file:Main.java

public static void main(String[] argv) throws Exception {
    BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream("infilename"), "UTF8"));
    String str = in.readLine();
    System.out.println(str);/*from w w w  . j  a  v  a2 s  . c  o m*/
}

From source file:MainClass.java

public static void main(String args[]) throws IOException {
    Hashtable map = new Hashtable();
    FileReader fr = new FileReader(args[0]);
    BufferedReader br = new BufferedReader(fr);
    String line;/*from w w  w  .  j a  v a2  s  . c  om*/
    while ((line = br.readLine()) != null) {
        processLine(line, map);
    }
    Enumeration e = map.keys();
    while (e.hasMoreElements()) {
        String key = (String) e.nextElement();
        System.out.println(key + " : " + map.get(key));
    }
}

From source file:WordCount.java

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

    Hashtable map = new Hashtable();
    FileReader fr = new FileReader(args[0]);
    BufferedReader br = new BufferedReader(fr);
    String line;//from  w ww.ja va  2  s  .com
    while ((line = br.readLine()) != null) {
        processLine(line, map);
    }
    Enumeration e = map.keys();
    while (e.hasMoreElements()) {
        String key = (String) e.nextElement();
        System.out.println(key + " : " + map.get(key));
    }
}

From source file:Main.java

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

    BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream("infilename"), "8859_1"));
    String str = in.readLine();
    System.out.println(str);//  ww w. jav a  2  s . c om
}