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 Exception {
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    String strLine = in.readLine();
    BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
    out.write(strLine, 0, strLine.length());
    out.flush();// ww  w  .ja  v  a2  s  . c o  m
    in.close();
    out.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    BufferedReader br = new BufferedReader(new FileReader("in.txt"));
    BufferedWriter bw = new BufferedWriter(new FileWriter("out.txt"));
    int i;/*from  ww w. ja  va  2 s. c om*/
    do {
        i = br.read();
        if (i != -1) {
            if (Character.isLowerCase((char) i))
                bw.write(Character.toUpperCase((char) i));
            else if (Character.isUpperCase((char) i))
                bw.write(Character.toLowerCase((char) i));
            else
                bw.write((char) i);
        }
    } while (i != -1);
    br.close();
    bw.close();
}

From source file:ReadConsole.java

public static void main(String args[]) throws Exception {
    InputStreamReader isr = new InputStreamReader(System.in);

    BufferedReader br = new BufferedReader(isr);

    String s;//from  ww w  . j a va 2s .c o m
    while ((s = br.readLine()) != null) {
        System.out.println(s.length());
    }
    isr.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    URL url = new URL("http://localhost:1776");
    BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
    String line;/* www .  jav  a2s.  co  m*/
    while ((line = in.readLine()) != null) {
        System.out.println(line);
    }
    in.close();
}

From source file:Main.java

public static void main(String args[]) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String tmp = br.readLine();/*ww w  .ja v  a  2  s. c  o  m*/
    int length = tmp.length();
    char c[] = new char[length];
    tmp.getChars(0, length, c, 0);
    CharArrayReader input1 = new CharArrayReader(c);
    int i;
    System.out.print("input1 is:");
    while ((i = input1.read()) != -1) {
        System.out.print((char) i);
    }

}

From source file:Main.java

public static void main(String args[]) throws IOException {
    String data, answer = "";
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Enter any String : ");
    data = br.readLine();//from   w ww  . ja  v  a 2s .  com
    char[] findupper = data.toCharArray();
    for (int i = 0; i < findupper.length; i++) {
        if (findupper[i] >= 65 && findupper[i] <= 91) // ascii value in between 65
                                                      // and 91 is A to Z
        {
            answer += findupper[i]; // adding only uppercase
        }
    }
    System.out.println("Answer : " + answer);
}

From source file:ReverseConsoleInput.java

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

    // Read and process lines from console
    String s;/*from  www.  j  a  va 2s  .co m*/
    while ((s = br.readLine()) != null) {
        StringBuffer sb = new StringBuffer(s);
        sb.reverse();
        System.out.println(sb);
    }
    isr.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);/*from w  w w. j  a v  a2  s .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:Main.java

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

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    BufferedReader br = new BufferedReader(sr);

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    URL myURL = new URL("http://www.google.com");
    BufferedReader so = new BufferedReader(new InputStreamReader(myURL.openStream()));
    while (true) {
        String output = so.readLine();
        if (output != null) {
            System.out.println(output);
        } else {//from  www . ja v  a 2 s .  c o  m
            break;
        }
    }
    so.close();
}