parsing txt file, searching for specific words, then producean xml represent specific information based on the content of the txt file

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Java

IO

I want to analyze Java source code and produce some kind of output based on its contents, I started by moving the source code to txt file so I can pars it, then I would search for specific word in each test case if I found it I will present it in the produced xml file, that words I'm looking for are Cell and Engine.
the coude that I copied to txt file for parsing purpose is down;

public class GameTest {
    @Test
    public void testGetMonsters() {
        Cell cell11 = aBoard.getCell(1, 1);
        theEngine = new Engine(theGame);   
    }

    @Test
    public void testDxDyPossibleMove() {
        Cell cell11 = aBoard.getCell(1, 1);
    }  
}

The structure of the output xml file looks like:

<class name="GameTest">
    <testcase name="testDxDyPossibleMove" Object1="Cell" object2="Engine" />
    <testcase name="testDxDyPossibleMove" Object1="Cell" object2="null" />
</class>

since we found the word Cell and Engine in the first test case we present them as an attribute in the xml file object1 and object2 respectively, while in the second test case there is only Engine so that attribute for Cell word is assigned with null in the xml file.