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PO
primarykey
Id
7006855
data
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0
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0
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0
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2011-08-10T06:44:27.303
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0
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2011-08-10T07:41:43.597
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2011-08-10T07:41:43.597
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307767
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307767
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7006801
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2
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0
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0
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text
Body
The code you have post here is for any type of array not only <code>int</code> and for more than 2 arrays to merge. (unlimited) <code>T</code> stand for a generic Type. see <a href="http://%20download.oracle.com/javase/tutorial/java/generics/index.html" rel="nofollow">Generics in Java</a>. You can use only the <code>System.arraycopy(Object src, int srcPos, Object dest, int destPos, int length)</code> <ul> <li><code>src</code> the source array.</li> <li><code>srcPos</code> starting position in the source array.</li> <li><code>dest</code> the destination array.</li> <li><code>destPos</code> starting position in the destination data.</li> <li><code>length</code> the number of array elements to be copied.</li> </ul> First make an array which has the length of both arrays. <pre><code>public merge(int[] x, int[] y) { int[] merged = new int[x.length + y.length] </code></pre> Than copy with <code>System.arraycopy</code> the first array <code>x</code> into <code>merged</code> at <code>0</code>. And copy with <code>System.arraycopy</code> the 2nd array <code>y</code> into <code>merged</code> at <code>x.length</code> But it doesn't eliminate duplicates. For no duplicates you can use a <a href="http://download.oracle.com/javase/6/docs/api/java/util/Set.html" rel="nofollow">Set</a>. But we have to work with <code>Integer</code> not <code>int</code>. So we have to convert to <code>Integer</code> an back to <code>int</code>. like: <pre><code>HashSet<Integer> set = new HashSet<Integer>(); for( int i : x ) { set.add( Integer.valueOf( i ) ); } for( int i : y ) { set.add( Integer.valueOf( i ) ); } int[] merged = new int[set.size()]; int i = 0; for( Integer value : set ) { merged[i++] = value.intValue(); } </code></pre>
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1. POJava custom arrayMerge function
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1. USoliholz
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