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PORearranging array when it has a null position
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  1. PORearranging array when it has a null position
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    copied!<p>I have this code that searches one object in an array and removes it. I'm having a problem with its position, since some other methods work with this array (and it gives me a NullPointerException every time). My method looks like this:</p> <pre><code>public void deleteHotel(String hotelName) { for (int i = 0; i &lt; this.hoteis.length; i++) { if (this.hoteis[i].getName().equalsIgnoreCase(nomeHotel)) { //searches the array, looking for the object that has the inputted name this.hoteis[i] = null; //makes that object null if (this.hoteis.length &gt; 1 &amp;&amp; this.hoteis[this.hoteis.length - 1] != null) { //for arrays with lenghts bigger than 1 (since there's no problem with an array with one position) for (int x = i; x &lt; this.hoteis.length; x++) { this.hoteis[x] = this.hoteis[x + 1]; //makes that null position point to the next position that has an object, and then that position points to the object in the next position and so on } this.hoteis[this.hoteis.length - 1] = null; //since the last to positions will be the same, make that last one null Hotel[] hoteisTemp = new Hotel[this.hoteis.length - 1]; for(int x = 0; x &lt; this.hoteis.length - 1; x++){ //create a new array with one less position, and then copy the objects on the old array into the new array, then point the old array to the new array hoteisTemp[x] = this.hoteis[x]; } this.hoteis = hoteisTemp; } i = this.hoteis.length; } } } </code></pre> <p>When I use other methods (for example, one that returns the implemented toString()s of each object) it gives me a NullPointerException. Can you guys identify the error in the code? Much appreciated...</p>
 

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