Example usage for java.io BufferedReader BufferedReader

Introduction

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

Prototype

public BufferedReader(Reader in)

Source Link

Document

Creates a buffering character-input stream that uses a default-sized input buffer.

Usage

From source file:Main.java

public static void main(String args[]) throws IOException {
    BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Enter the char:");
    String str = buff.readLine();
    for (int i = 0; i < str.length(); ++i) {
        char c = str.charAt(i);
        int j = (int) c;
        System.out.println("ASCII OF " + c + " = " + j + ".");
    }/* ww  w . ja  v a 2s  .c o m*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String first, last = null, line;
    BufferedReader in = new BufferedReader(new FileReader(args[0]));
    first = in.readLine();//w  ww  .  j  av a 2 s .c  o m
    while ((line = in.readLine()) != null) {
        if (line != null) {
            last = line;
        }
    }
    System.out.println(first + "\n" + last);
    in.close();
}

From source file:BRRead.java

public static void main(String args[]) throws IOException {
    char c;/*from   w  w  w .  j  a va  2  s.c  om*/
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Enter characters, 'q' to quit.");
    do {
        c = (char) br.read();
        System.out.println(c);
    } while (c != 'q');
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    String text = "q";
    while (true) {
        System.out.print("Please type a message (Q/q to quit) and press enter:");
        text = br.readLine();/*from  w  w  w .ja v a  2 s . c o  m*/
        if (text.equalsIgnoreCase("q")) {
            System.out.println("We have  decided to exit  the   program");
            break;
        } else {
            System.out.println("We typed: " + text);
        }
    }
}

From source file:Main.java

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

    FileReader fr = new FileReader(args[0]);
    BufferedReader br = new BufferedReader(fr);

    // Process lines from file
    String line;//w  ww  .j  a  v a2 s.co  m
    while ((line = br.readLine()) != null) {
        char array[] = line.toCharArray();
        System.out.print(array[0]);
    }
}

From source file:UseTrim.java

public static void main(String args[]) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String str;// w  w  w. j  a v a 2  s .c  o m

    System.out.println("Enter 'stop' to quit.");
    System.out.println("Enter letter: ");
    do {
        str = br.readLine();
        str = str.trim();

        if (str.equals("I"))
            System.out.println("I");
        else if (str.equals("M"))
            System.out.println("M");
        else if (str.equals("C"))
            System.out.println("C.");
        else if (str.equals("W"))
            System.out.println("W");
    } while (!str.equals("stop"));
}

From source file:ParseDemo.java

public static void main(String args[]) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String str;//www. j ava2  s .c o  m
    int i;
    int sum = 0;

    System.out.println("Enter numbers, 0 to quit.");
    do {
        str = br.readLine();
        try {
            i = Integer.parseInt(str);
        } catch (NumberFormatException e) {
            System.out.println("Invalid format");
            i = 0;
        }
        sum += i;
        System.out.println("Current sum is: " + sum);
    } while (i != 0);
}

From source file:TinyEdit.java

public static void main(String args[]) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String str[] = new String[100];

    System.out.println("Enter lines of text.");
    System.out.println("Enter 'stop' to quit.");
    for (int i = 0; i < 100; i++) {
        str[i] = br.readLine();/*from w  w w  .j  ava  2s. co m*/
        if (str[i].equals("stop"))
            break;
    }

    System.out.println("\nHere is your file:");

    for (int i = 0; i < 100; i++) {
        if (str[i].equals("stop"))
            break;
        System.out.println(str[i]);
    }
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {
    // 1. Reading input by lines:
    BufferedReader in = new BufferedReader(new FileReader("IOStreamDemo.java"));
    String s, s2 = new String();
    while ((s = in.readLine()) != null)
        s2 += s + "\n";
    in.close();//ww  w . ja va  2s  .co m

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedReader in = null;//from  w w w. j a v  a2  s .c o m
    in = new BufferedReader(new FileReader("fileeditor.txt"));
    StreamTokenizer st = new StreamTokenizer(in);
    st.eolIsSignificant(false);
    // remove comment handling
    st.slashSlashComments(false);
    st.slashStarComments(false);

    while (st.nextToken() != StreamTokenizer.TT_EOF) {
        if (st.ttype == StreamTokenizer.TT_NUMBER) {
            // the default is to treat numbers differently than words
            // also the numbers are doubles
            System.out.println((int) st.nval);
        } else {
            System.out.println(st.sval);
        }
    }
}