Examples of java.util.Formatter.ioException()

java.util.Formatter.ioException()
Returns the IOException last thrown by this formatter's {@link Appendable}.
If the destination's append() method never throws IOException, then this method will always return null. @return The last exception thrown by the Appendable or null ifno such exception exists.

                }
                printf(formatter, "\n");
            }


            formatter.flush();
            IOException ioException = formatter.ioException();
            if (ioException != null) throw ioException;
        }
        finally {
            formatter.close();
        }

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        Formatter f = new Formatter(notExist);
        assertTrue(f instanceof Closeable);
        f.close();
        // close next time will not throw exception
        f.close();
        assertNull(f.ioException());
    }


    /**
     * @tests java.util.Formatter#toString()
     */

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     * @tests java.util.Formatter#ioException()
     */
    public void test_ioException() throws IOException {
        Formatter f = null;
        f = new Formatter(new MockDestination());
        assertNull(f.ioException());
        f.flush();
        assertNotNull(f.ioException());
        f.close();


        MockDestination md = new MockDestination();

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    public void test_ioException() throws IOException {
        Formatter f = null;
        f = new Formatter(new MockDestination());
        assertNull(f.ioException());
        f.flush();
        assertNotNull(f.ioException());
        f.close();


        MockDestination md = new MockDestination();
        f = new Formatter(md);
        f.format("%s%s", "1", "2");

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        MockDestination md = new MockDestination();
        f = new Formatter(md);
        f.format("%s%s", "1", "2");
        // format stop working after IOException
        assertNotNull(f.ioException());
        assertEquals("", f.toString());
    }


    /**
     * @tests java.util.Formatter#format(String, Object...) for null parameter

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        Formatter f = new Formatter(notExist);
        assertTrue(f instanceof Closeable);
        f.close();
        // close next time will not throw exception
        f.close();
        assertNull(f.ioException());
    }


    /**
     * @tests java.util.Formatter#toString()
     */

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     * @tests java.util.Formatter#ioException()
     */
    public void test_ioException() throws IOException {
        Formatter f = null;
        f = new Formatter(new MockDestination());
        assertNull(f.ioException());
        f.flush();
        assertNotNull(f.ioException());
        f.close();


        MockDestination md = new MockDestination();

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    public void test_ioException() throws IOException {
        Formatter f = null;
        f = new Formatter(new MockDestination());
        assertNull(f.ioException());
        f.flush();
        assertNotNull(f.ioException());
        f.close();


        MockDestination md = new MockDestination();
        f = new Formatter(md);
        f.format("%s%s", "1", "2");

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        MockDestination md = new MockDestination();
        f = new Formatter(md);
        f.format("%s%s", "1", "2");
        // format stop working after IOException
        assertNotNull(f.ioException());
        assertEquals("", f.toString());
    }


    /**
     * @tests java.util.Formatter#format(String, Object...) for null parameter

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                }
                printf(formatter, "\n");
            }


            formatter.flush();
            IOException ioException = formatter.ioException();
            if (ioException != null) throw ioException;
        }
        finally {
            formatter.close();
        }

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