How to compile this with command prompt

hi,<div><br></div><div>this is &nbsp;Ashok. If i compile the program it shows some error like</div><div><br></div><div><div>StudentRecordGUI.java:28: cannot access Add</div><div>bad class file: .\Add.class</div><div>class file has wrong version 50.0, should be 49.0</div><div>Please remove or make sure it appears in the correct subdirectory of the classpa</div><div>th.</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; add &nbsp; &nbsp; = new Add("Add",frame);</div><div>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ^</div><div>1 error</div></div><div><br></div><div>please help me to rectify that</div><div>ashoktoashok@gmail.com</div><div>this is my gmail account</div><div>thanks &amp; regards&nbsp;</div><div>Ashok</div>

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