NumberFormatException Explained

Опубликовано: 04 Октябрь 2024
на канале: AshishBurman

Here's a concise YouTube video description based on your content:
Understanding NumberFormatException in Java

In this video, we dive into the NumberFormatException in Java, a runtime exception that occurs when converting a string to a numeric type (like int, float, double, etc.).

Valid Conversions:
• int number = Integer.parseInt("123");

• double decimal = Double.parseDouble("3.14");

• float floatNumber = Float.parseFloat("1.23");

Invalid Conversions:
• int number = Integer.parseInt("123abc");

• double decimal = Double.parseDouble("3.14abc");

• float floatNumber = Float.parseFloat("1.23.45");

Summary:
• NumberFormatException is thrown when trying to convert a malformed or invalid string to a numeric type.

• Common methods include parseInt, parseDouble, parseFloat, and parseLong.

• Always handle possible NumberFormatException to prevent your application from crashing due to unexpected inputs.

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