Examples of java.util.ArrayList.ensureCapacity()

java.util.ArrayList.ensureCapacity()
Increases the capacity of this ArrayList instance, if necessary, to ensure that it can hold at least the number of elements specified by the minimum capacity argument. @param minCapacity the desired minimum capacity

        ArrayList values = (ArrayList) paramHashValues.get(key);
        if (values == null) {
            values = new ArrayList(newValues.length);
            paramHashValues.put(key, values);
        } else {
            values.ensureCapacity(values.size() + newValues.length);
        }
        for (int i = 0; i < newValues.length; i++) {
            values.add(newValues[i]);
        }
    }

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        for (i = 0; i < capacity / 2; i++) {
            al.add(i, new Object());
        }
        al.add(i, testObject);
        int location = al.indexOf(testObject);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array1.",
                location == al.indexOf(testObject));
        al.remove(0);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array2.",

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        int location = al.indexOf(testObject);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array1.",
                location == al.indexOf(testObject));
        al.remove(0);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array2.",
                --location == al.indexOf(testObject));
        al.ensureCapacity(capacity + 2);
        assertTrue("EnsureCapacity did not change location.", location == al
                .indexOf(testObject));

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                location == al.indexOf(testObject));
        al.remove(0);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array2.",
                --location == al.indexOf(testObject));
        al.ensureCapacity(capacity + 2);
        assertTrue("EnsureCapacity did not change location.", location == al
                .indexOf(testObject));
    }


    /**

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     */
    public List getHistory(int channel) {
        ArrayList result = new ArrayList();


        if (_records != null) {
            result.ensureCapacity(_records.size());


            Iterator firings = _records.iterator();


            while (firings.hasNext()) {
                Token[] record = (Token[]) firings.next();

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    public void ensureCapacity(int capacity) {


        if (fast) {
            synchronized (this) {
                ArrayList temp = (ArrayList) list.clone();
                temp.ensureCapacity(capacity);
                list = temp;
            }
        } else {
            synchronized (list) {
                list.ensureCapacity(capacity);

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        for (i = 0; i < capacity / 2; i++) {
            al.add(i, new Object());
        }
        al.add(i, testObject);
        int location = al.indexOf(testObject);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array1.",
                location == al.indexOf(testObject));
        al.remove(0);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array2.",

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        int location = al.indexOf(testObject);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array1.",
                location == al.indexOf(testObject));
        al.remove(0);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array2.",
                --location == al.indexOf(testObject));
        al.ensureCapacity(capacity + 2);
        assertTrue("EnsureCapacity did not change location.", location == al
                .indexOf(testObject));

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                location == al.indexOf(testObject));
        al.remove(0);
        al.ensureCapacity(capacity);
        assertTrue("EnsureCapacity moved objects around in array2.",
                --location == al.indexOf(testObject));
        al.ensureCapacity(capacity + 2);
        assertTrue("EnsureCapacity did not change location.", location == al
                .indexOf(testObject));
    }


    /**

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    for (i = 0; i < capacity / 2; i++) {
      al.add(i, new Object());
    }
    al.add(i, testObject);
    int location = al.indexOf(testObject);
                al.ensureCapacity(capacity);
                assertTrue("EnsureCapacity moved objects around in array1.",
                                location == al.indexOf(testObject));
                al.remove(0);
                al.ensureCapacity(capacity);
                assertTrue("EnsureCapacity moved objects around in array2.",

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