We can convert String to int in java using Integer.parseInt() method.
It is generally used if we have to perform mathematical operations on the string that contains number. Whenever we get data from textfield or textarea, entered data is received as a string. If entered data is integer, we need to convert string to int. To do so, we use Integer.parseInt() method.
The parseInt() is the static method of Integer class. The signature of parseInt() method is given below:
public static int parseInt(String s)