Here are a few title options, incorporating the question format and focusing on the core problem addressed in the article: * How Can I Safely Cast a Long to an Int in Java Without Data Loss? (Direct

How to Safely Cast Long to Int in Java

Verifying that a cast from long to int does not lose any information is crucial to prevent data loss. The following is a recommended approach:

Java 8's toIntExact Method

Java 8 introduced the toIntExact method in the Math class. This method provides a safe way to convert a long to an int by throwing an ArithmeticException if the value is out of range.

<code class="java">long foo = 10L;
int bar = Math.toIntExact(foo);</code>

This approach ensures that if the value cannot be represented as an int without loss of information, an exception is thrown, allowing for proper handling of the situation.

Other Overflow-Safe Methods in Java 8

In addition to toIntExact, Java 8 also added several other overflow-safe methods to the Math class, all ending with exact. These methods provide similar functionality for various arithmetic operations.

For example:

• incrementExact(long)
• subtractExact(long, long)
• negateExact(long)

By utilizing these safe methods, you can avoid potential data loss and exceptions when dealing with numeric operations in Java.

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