Jul 29, 2009 · This answer fails to properly address the question: "How do I declare and initialize an array in Java?" Other answers here show that it is simple to initialize float and int arrays when they …

Dec 21, 2009 · 4 If you want to initialize an array in a constructor, you can't use those array initializer like.

42 You can't remove an element from the basic Java array. Take a look at various Collections and ArrayList instead.

May 16, 2010 · The size of an array can't be modified. If you want a bigger array you have to instantiate a new one. A better solution would be to use an ArrayList which can grow as you need it. The …

Nov 1, 2011 · In older Java versions using pre-sized array was recommended, as the reflection call which is necessary to create an array of proper size was quite slow. However since late updates of …

The length of an array in Java is immutable. So, you need to copy the desired part into a new array. Use copyOfRange method from java.util.Arrays class:

If you want to store n elements then the array index starts from zero and ends at n-1. Another way of creating a two dimensional array is by declaring the array first and then allotting memory for it by …

There are two styles to convert a collection to an array: either using a pre-sized array (like c.toArray (new String [c.size ()])) or using an empty array (like c.toArray (new String [0]). In older Java versions …

Jul 15, 2009 · How do I determine whether an array contains a particular value in Java? Asked 16 years, 5 months ago Modified 4 months ago Viewed 2.9m times

Java Array Copy Methods Object.clone (): Object class provides clone () method and since array in java is also an Object, you can use this method to achieve full array copy.