Example usage for java.io StringReader read

Introduction

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

Prototype

public int read() throws IOException

Source Link

Document

Reads a single character.

Usage

From source file:Main.java

public static void main(String[] argv) throws IOException {
    StringReader stringReader = new StringReader("java2s.com");
    System.out.println(stringReader.read());

    stringReader.close();/*from  ww w  .  j a v a 2 s.c  o  m*/
}

From source file:Main.java

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

    StringReader in2 = new StringReader("a bc ddd");
    int c;/* www .  j  a  v  a2s. co m*/
    while ((c = in2.read()) != -1)
        System.out.print((char) c);

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
    System.out.println(stdin.readLine());
    BufferedReader in = new BufferedReader(new FileReader("Main.java"));
    String s, s2 = new String();
    while ((s = in.readLine()) != null)
        s2 += s + "\n";
    in.close();//from ww  w.  j a  v a2  s . c  o  m
    StringReader in1 = new StringReader(s2);
    int c;
    while ((c = in1.read()) != -1)
        System.out.print((char) c);
    BufferedReader in2 = new BufferedReader(new StringReader(s2));
    PrintWriter out1 = new PrintWriter(new BufferedWriter(new FileWriter("IODemo.out")));
    int lineCount = 1;
    while ((s = in2.readLine()) != null)
        out1.println(lineCount++ + ": " + s);
    out1.close();
}

From source file:Main.java

public static void main(String[] argv) throws IOException {
    StringReader stringReader = new StringReader("java2s.com");
    stringReader.skip(2);/*from ww w .j  a v  a 2  s  .c  o m*/
    System.out.println(stringReader.read());

    stringReader.close();
}

From source file:Main.java

public static void main(String[] argv) throws IOException {
    StringReader stringReader = new StringReader("java2s.com");

    stringReader.mark(2);// w ww.j  a v a  2s . co  m

    System.out.println(stringReader.markSupported());

    System.out.println(stringReader.read());

    stringReader.reset();

    stringReader.close();
}

From source file:StringIOApp.java

public static void main(String args[]) throws IOException {
    StringWriter outStream = new StringWriter();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));//  ww w.  j a  v  a 2 s .c om
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.toString().length());
    StringReader inStream;
    inStream = new StringReader(outStream.toString());
    int ch = 0;
    StringBuffer sb = new StringBuffer("");
    while ((ch = inStream.read()) != -1)
        sb.append((char) ch);
    s = sb.toString();
    System.out.println(s.length() + " characters were read");
    System.out.println("They are: " + s);
}

From source file:Main.java

public static String readString(StringReader sr, char delimiter) {
    try {// w w  w . j  a  v a  2s.com
        StringBuilder sb = new StringBuilder();
        char c;
        while ((c = (char) sr.read()) != (char) -1) {
            if (c == '\\') {
                // This is an escape character. Jump past to the next char.
                sb.append((char) sr.read());
            } else if (c == delimiter) {
                break;
            } else {
                sb.append(c);
            }
        }
        return sb.toString();
    } catch (IOException e) {
        // Cannot happen as there is no IO here - just a read from a string
        throw new RuntimeException("Unexpected IOException", e);
    }

}

From source file:Main.java

/**
 * Takes a single line command as a string and breaks it up in tokens
 * acceptable for the java.lang.ProcessBuilder.ProcessBuilder
 * @param command Complete command as a single string
 * @return Array of strings that are acceptable tokens for ProcessBuilder
 * @throws Exception /*www . jav a  2 s  .  c  o m*/
 */
static public List<String> breakUpCommand(String command) throws Exception {
    try {
        List<String> commandTokens = new Vector<String>();

        StringBuilder currentToken = null;
        boolean isTokenQuoted = false;
        StringReader sr = new StringReader(command);
        int b = sr.read();
        while (b >= 0) {
            char c = (char) b;

            if (null == currentToken) {
                // At token is not in progress

                // Skipping spaces
                if (' ' == c || '\t' == c) {

                } else if ('"' == c) {
                    // Starting a quoted token
                    currentToken = new StringBuilder();
                    //currentToken.append(c);
                    isTokenQuoted = true;
                } else {
                    // Starting a non-quoted token
                    currentToken = new StringBuilder();
                    currentToken.append(c);
                    isTokenQuoted = false;
                }

            } else if (isTokenQuoted) {
                // A quoted token is in progress. It ends with a quote
                if ('"' == c) {
                    //currentToken.append(c);
                    String token = currentToken.toString();
                    currentToken = null;
                    commandTokens.add(token);

                } else {
                    // Continuation
                    currentToken.append(c);
                }

            } else {
                // A non-quoted token is in progress. It ends with a space
                if (' ' == c || '\t' == c) {
                    String token = currentToken.toString();
                    currentToken = null;
                    commandTokens.add(token);

                } else {
                    // Continuation
                    currentToken.append(c);
                }
            }

            b = sr.read();
        }

        if (null != currentToken) {
            String token = currentToken.toString();
            commandTokens.add(token);
        }

        return commandTokens;

    } catch (IOException e) {
        throw new Exception("Error while breaking up command into tokens: " + command, e);
    }
}

From source file:BasicUUID.java

/**
 * Read a long value, msb first, from its character representation in the
 * string reader, using '-' or end of string to delimit.
 *///from  w  w  w.  j av a  2 s.  c  o m
private static long readMSB(StringReader sr) {
    long value = 0;

    try {
        int c;
        while ((c = sr.read()) != -1) {
            if (c == '-')
                break;
            value <<= 4;

            int nibble;
            if (c <= '9')
                nibble = c - '0';
            else if (c <= 'F')
                nibble = c - 'A' + 10;
            else
                nibble = c - 'a' + 10;
            value += nibble;
        }
    } catch (Exception e) {
    }

    return value;
}

From source file:fi.uta.infim.usaproxylogparser.UsaProxyHTTPTrafficLogParser.java

/**
 * Converts a UsaProxy DOM path to an XPath expression
 * @param usaProxyPath usaproxy dom path
 * @return XPath expression as string//  w  w w.ja  v a2  s  .  c o  m
 * @throws IOException
 * @throws XPathExpressionException
 */
static String usaProxyDOMPathToXPath(String usaProxyPath) throws IOException, XPathExpressionException {
    String path = "";
    StringReader reader = new StringReader(usaProxyPath);
    while (reader.ready()) {
        int depth = 0; // Index of the child element
        int currentChar;
        String prefix = "0";
        while (Character.isDigit(currentChar = reader.read())) {
            prefix += String.valueOf((char) currentChar);
        }
        if (currentChar == -1)
            break;
        depth += Integer.parseInt(prefix) * 26;
        depth += currentChar - ((int) 'a') + 1; // assuming ascii charset
        path += "/*[" + String.valueOf(depth) + "]";
    }

    return path;
}