Java Vector copyInto() Method

The copyInto() method of Java Vector class used to copy the elements of the vector which is in use into the specified array. In this, the position of the elements is the same in both the vector and an array.

Syntax:

Following is the declaration of copyInto() method:

Parameter:

Returns:

The copyInto() method has return type void so, it does not return anything.

Exceptions:

NullPointerException- This method has thrown an exception if the specified array is null.

IndexOutOfBoundsException- This method has thrown an exception if the specified array is unable to hold all the components of this vector.

Compatibility Version:

Java 1.2 and above

Example 1:

Output:

Elements in an array are: 
1
2
3
4
5

Example 2:

Output:

Elements of the Array: 
Rahul
Vijay
Shyam
Rohan

Example 3:

Output:

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException
	at java.base/java.lang.System.arraycopy(Native Method)
	at java.base/java.util.Vector.copyInto(Vector.java:200)
	at myPackage.VectorCopyIntoExample3.main(VectorCopyIntoExample3.java:12)