Manually. In this method we manually copy elements one by one. Use copyOf() or copyOfRange() methods of Arrays class. How to Copy One Array to Another in Java 1. The Array.from() method creates a new, shallow-copied Array instance from an array-like or iterable object. To prevent this side effect following are the better ways to copy the array elements. Object.clone() Lets discuss each of them in brief. This can improve reliability. You can use a for loop and copy elements of one to another one by one. It is not an efficient way. Info: The Array.ConstrainedCopy method instead throws an exception. Arrays.copyOf() 3. C Program to Copy an Array to another array. The regular Array.Copy method will silently copy a byte array to an int array. Manually 2. System.arraycopy() 4. Using variable assignment.

This method has side effects as changes to the element of an array reflects on both the places. Copy(Array, Int64, Array, Int64, Int64) Copies a range of elements from an Array starting at the specified source index and pastes them to another Array starting at the specified destination index. Create a new array of the same length and copy each element. Using For Loop, we are going to copy each element to the second array. Array can be copied by iterating over array, and one by one assigning elements. Q #1) How to make a copy of an array in Java? Copy(Array, Int32, Array, Int32, Int32) The length and the indexes are specified as 64-bit integers. Q #2) How do you assign one array to another? Array in java can be copied to another array using the following ways. Use arraycopy() method of System class. 1. There are mainly four different ways to copy all elements of one array into another array in Java. Use the clone method to clone an array. We can avoid iteration over elements using clone() or System.arraycopy() clone() creates a new array of same size, but System.arraycopy() can be used to copy from a source range to a destination range. Answer: There are different methods to copy an array. This C program allows the user to enter the size of an Array and then elements of an array.