Examples of com.carrotsearch.hppc.IntCharOpenHashMap$KeySetIterator

com.carrotsearch.hppc.IntCharOpenHashMap
An iterator over the set of assigned keys.


public class IteratingOverMaps
{
    IntCharOpenHashMap prepare(int size)
    {
        final IntCharOpenHashMap map = new IntCharOpenHashMap(size);
        for (int i = 0; i < size / 2; i++)
        {
            map.put(i, (char)(64 + i));
        }
        return map;
    }

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    @Test
    public void testIterableCursor()
    {
        // [[[start:iteration-maps-using-iterator]]]
        // Prepare some set to iterate over
        final IntCharOpenHashMap map = prepare(10);
        
        // Maps implement the Iterable interface that returns [keyType][valueType]Cursors 
        // The cursor contains the key, value and internal index of the current element. 
        for (IntCharCursor c : map)
        {

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    @Test
    public void testWithProcedureClosure()
    {
        // [[[start:iteration-maps-using-procedures]]]
        final IntCharOpenHashMap map = prepare(10);


        // Maps also support iteration through [keyType][valueType]Procedure interfaces.
        // The apply() method will be called once for each key/value pair in the map.
        
        // Iteration from head to tail
        map.forEach(new IntCharProcedure()
        {
            public void apply(int key, char value)
            {
                System.out.println(key + " -> " + value);
            }

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    @Test
    public void testDirectBufferLoop() throws Exception
    {
        // [[[start:iteration-maps-using-direct-buffer-access]]]
        final IntCharOpenHashMap map = prepare(10);
        
        // For the fastest iteration, you can access the sets's data buffers directly.
        final int [] keys = map.keys;
        final char [] values = map.values;
        final boolean [] states = map.allocated;

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Related Classes of com.carrotsearch.hppc.IntCharOpenHashMap$KeySetIterator

com.carrotsearch.hppc.examples.IteratingOverMaps

java.util.NoSuchElementException

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