parseInt (int i) − This returns an integer, given a string representation of decimal, binary, octal, or hexadecimal (radix equals 10, 2, 8, or 16 respectively) numbers as input.

Jul 23, 2025 · The most common method to convert a string to a primitive int is Integer.parseInt (). It throws a NumberFormatException if the string contains non-numeric characters.

If the property value begins with the ASCII character 0 followed by another character, it is parsed as an octal integer exactly as by the method valueOf(java.lang.String, int) with radix 8.

Sadly, the standard Java methods Integer::parseInt and Integer::valueOf throw a NumberFormatException to signal this special case. Thus, you have to use exceptions for flow …

Mar 25, 2025 · The parseInt () method in Java is used to change numbers that are written as text (strings) into actual numbers (integers) that the computer can understand and work with.

The parseInt() method in Java is a powerful tool for converting string representations of numbers into integer values. By understanding its fundamental concepts, usage methods, common practices, and …

Jan 8, 2024 · In this article, we learnt about the different implementations of parseInt () and valueOf () methods of the java.lang.Integer class. We also looked at the differences between the two methods.

Java parseInt () method is used to get the primitive data type from a specific string. In other words it converts a string to a number. parseInt () can have one or two arguments.

Oct 16, 2025 · The Integer.parseInt() method in Java is a powerful and widely used tool for converting strings to integers. However, it is important to understand its core concepts, typical usage scenarios, …

Learn how to use parseInt in Java to convert strings to integers. Understand its parameters, return values, examples, and how it compares with valueOf ().