The set() method of java.util.ArrayList class is used to replace the element at the specified position in this list with the specified element.
public E set(int index, E element)
Parameters: This method takes the following argument as a parameter.
- index- index of the element to replace
- element- element to be stored at the specified position
Returns Value: This method returns the element previously at the specified position.
Exception: This method throws IndexOutOfBoundsException if the index is not within the size range of the ArrayList.
Below are the examples to illustrate the set() method.
Before operation : [1, 2, 3, 4, 5] After operation : [1, 2, 3, 30, 5] Replaced element : 4
Example 2: For IndexOutOfBoundsException
Before operation : [1, 2, 3, 4, 5] Trying to Replace the element at (index > Capacity) Exception thrown : java.lang.IndexOutOfBoundsException: Index: 7, Size: 5
Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course.