how to get int from string java

To convert a string to an int in Java, you can use the parseInt() method of the Integer class. This method takes a string as an argument and returns the integer value represented by the string.

Here's an example of how you can convert a string to an int in Java:

import java.lang.Integer;

// ...

String str = "123";
int num = Integer.parseInt(str);

In this example, the str variable holds the string "123", and the num variable holds the integer value represented by the string.

It's important to note that the parseInt() method throws a NumberFormatException if the string does not contain a parsable integer. You should handle this exception appropriately in your code.

You can also use the valueOf() method of the Integer class to convert a string to an int. This method works similarly to parseInt(), but it returns an Integer object instead of an int primitive.