Example usage for java.io PushbackReader read

Introduction

In this page you can find the example usage for java.io PushbackReader 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[] args) {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    PushbackReader pr = new PushbackReader(sr, 20);

    try {/*from w w  w.  ja  v a 2 s  . c  o  m*/
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }
        pr.mark(5);
        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

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From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    PushbackReader pr = new PushbackReader(sr, 20);

    try {//ww  w.  jav a2  s  . co  m
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }
        System.out.println("" + pr.markSupported());

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) {
    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    PushbackReader pr = new PushbackReader(sr, 20);

    try {/*from  w w w .j  a v a  2s  .  c  o m*/
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }
        char cbuf[] = { 'w', 'o', 'r', 'l', 'd' };

        pr.unread(cbuf, 1, 4);

        for (int i = 0; i < 4; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    PushbackReader pr = new PushbackReader(sr, 20);

    try {//from  w w  w  . j  ava  2  s.c  o  m
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }

        char cbuf[] = { 'w', 'o', 'r', 'l', 'd' };

        pr.unread(cbuf);

        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) {
    try {// w w  w  .  j  a  v  a 2s.co  m
        String s = "from java2s.com";

        StringReader sr = new StringReader(s);

        // create a new PushBack reader based on our string reader
        PushbackReader pr = new PushbackReader(sr, 20);

        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }
        // try to reset
        pr.reset();

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    // create a new PushBack reader based on our string reader
    PushbackReader pr = new PushbackReader(sr, 20);
    try {/*from   w  w w  . j  av  a2s .co m*/
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    // create a new PushBack reader based on our string reader
    PushbackReader pr = new PushbackReader(sr, 20);

    try {//w w w  . j ava2 s.c om
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    // create a new PushBack reader based on our string reader
    PushbackReader pr = new PushbackReader(sr, 20);

    try {//from ww w .  ja v  a  2  s .  c  o m
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);

            // skip a character every time
            pr.skip(1);
        }

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    // create a new PushBack reader based on our string reader
    PushbackReader pr = new PushbackReader(sr);

    try {/*from w  w w .ja  v  a2  s.c  om*/
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }
        // unread a character
        pr.unread('F');

        // read the next char, which is the one we unread
        char c = (char) pr.read();

        System.out.println(c);

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    // create a new PushBack reader based on our string reader
    PushbackReader pr = new PushbackReader(sr, 20);

    try {//from   w  w  w  .  j  av a2 s  .  c om
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) pr.read();
            System.out.println(c);
        }
        // unread a character
        pr.unread('F');

        // read the next char, which is the one we unread
        char c = (char) pr.read();

        System.out.println(c);

        pr.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

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