Examples of java.io.Reader.reset()

java.io.Reader.reset()
Reset this Readers position to the last mark() location. Invocations of read()/skip() will occur from this new location. If this Reader was not marked, the implementation of reset() is implementation specific. See the comment for the specific Reader subclass for implementation details. The default action is to throw IOException. @throws IOException If a problem occured or the receiver does not support mark()/reset().

        assertEquals(0, array[2]);
        
        reader.skip(9);
        assertEquals(-1, reader.read(array, 0, 1));
        
        reader.reset();
        array = new char[30];
        assertEquals(9, reader.read(array, 0, 30));
    }


    //-----------------------------------------------------------------------

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        char[] array = new char[3];
        assertEquals(3, reader.read(array, 0, 3));
        assertEquals('o', array[0]);
        assertEquals('m', array[1]);
        assertEquals('e', array[2]);
        reader.reset();
        assertEquals(1, reader.read(array, 1, 1));
        assertEquals('o', array[0]);
        assertEquals('o', array[1]);
        assertEquals('e', array[2]);
        assertEquals(2, reader.skip(2));

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    public void testMark() throws IOException {
        Reader reader = new CharSequenceReader("FooBar");
        checkRead(reader, "Foo");
        reader.mark(0);
        checkRead(reader, "Bar");
        reader.reset();
        checkRead(reader, "Bar");
        reader.close();
        checkRead(reader, "Foo");
        reader.reset();
        checkRead(reader, "Foo");

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        checkRead(reader, "Bar");
        reader.reset();
        checkRead(reader, "Bar");
        reader.close();
        checkRead(reader, "Foo");
        reader.reset();
        checkRead(reader, "Foo");
    }


    /** Test {@link Reader#skip(int)}. */
    public void testSkip() throws IOException {

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    public void testSkip() throws IOException {
        Reader reader = new CharSequenceReader("FooBar");
        assertEquals(3, reader.skip(3));
        checkRead(reader, "Bar");
        assertEquals(-1, reader.skip(3));
        reader.reset();
        assertEquals(2, reader.skip(2));
        assertEquals(4, reader.skip(10));
        assertEquals(-1, reader.skip(1));
        reader.close();
        assertEquals(6, reader.skip(20));

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        char[] array = new char[3];
        assertEquals(3, reader.read(array, 0, 3));
        assertEquals('o', array[0]);
        assertEquals('m', array[1]);
        assertEquals('e', array[2]);
        reader.reset();
        assertEquals(1, reader.read(array, 1, 1));
        assertEquals('o', array[0]);
        assertEquals('o', array[1]);
        assertEquals('e', array[2]);
        assertEquals(2, reader.skip(2));

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        assertEquals(0, array[2]);
        
        reader.skip(9);
        assertEquals(-1, reader.read(array, 0, 1));
        
        reader.reset();
        array = new char[30];
        assertEquals(9, reader.read(array, 0, 30));
    }


    //-----------------------------------------------------------------------

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                        caw.append((char)c);
                    }
                } catch (IOException ignored) {
                }
                caw.close();
                try{ rdr.reset();} catch(IOException ignored) {}
                ret = new SAXSource(new InputSource(new CharArrayReader(caw.toCharArray())));
            } else {
                ret = new SAXSource();
            }
        } else if(src instanceof StreamSource) {

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                        caw.append((char)c);
                    }
                } catch (IOException ignored) {
                }
                caw.close();
                try{ rdr.reset();} catch(IOException ignored) {}
                ret = new StreamSource(new CharArrayReader(caw.toCharArray()));
            } else {
                ret = new StreamSource();
            }
        }

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        char[] array = new char[3];
        assertEquals(3, reader.read(array, 0, 3));
        assertEquals('o', array[0]);
        assertEquals('m', array[1]);
        assertEquals('e', array[2]);
        reader.reset();
        assertEquals(1, reader.read(array, 1, 1));
        assertEquals('o', array[0]);
        assertEquals('o', array[1]);
        assertEquals('e', array[2]);
        assertEquals(2, reader.skip(2));

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