ArrayList capacity increment equation

Question

In the JDK 1.7 into the ArrayList.java the method ensureCapacity increments the array capacity using the following expression: int newCapacity = oldCapaci

Answer 1

In Java 6 newCapacity is calculated as => int newCapacity = (oldCapacity * 3)/2 + 1;

In Java 7 newCapacity is calculated as => int newCapacity = oldCapacity + (oldCapacity >> 1)