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POpassing array of string from one class to another
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  1. POpassing array of string from one class to another
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    copied!<p>I'm trying to pass a string array from one class to another in my java code. By using code such as </p> <pre><code>Class instanceofclass = new Class(); String text1 = instanceofclass.variablename; </code></pre> <p>and then displaying it out on screen worked fine!</p> <p>However I'm trying to get the array of a string. So in my first class I have</p> <pre><code>JButton [] FilmTime = new JButton[5]; JButton [] FilmNames = new JButton[8]; String [] films = new String [8]; DbConnector dataBase = new DbConnector(); for (int i =0; i &lt;= 7; i++) { films[i] = dataBase.FilmTitle[i]; } for (int i =0; i&lt;= 7; i++) { FilmNames[i] = new JButton (films[i] + " ("+age+")"); FilmNames[i].setPreferredSize(new Dimension(563,50)); grid.add(FilmNames[i]); } </code></pre> <p>I know I can use one for loop but I was just checking issues at the momment.</p> <p>In my second class used named dbconnector i have:</p> <pre><code>public String FilmTitle []; for (int i =0; i&lt;=7; i++) { String query = "SELECT * FROM films WHERE ID =" + i; Rs = St.executeQuery(query); while (Rs.next()) { FilmTitle[i] = Rs.getString("FilmName"); } } </code></pre> <p>Eclipse gives the error as:</p> <pre><code>Error is: java.lang.NullPointerException java.lang.NullPointerException at main.init(main.java:46) at sun.applet.AppletPanel.run(Unknown Source) at java.lang.Thread.run(Unknown Source) </code></pre> <p>Line 46 is the statement in the first for loop... testingme[i] = instanceofclass.variablename[i];</p>
 

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