Why Does My Long Value Throw an \'Out of Range\' Error?

The Enigma of the Long Data Type: Unraveling the "Out of Range" Error

When working with data types in Java, it is crucial to adhere to their respective value ranges. Long, in particular, boasts an impressive range spanning from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807. However, a perplexing error may arise if proper syntax is not followed.

As showcased in the code snippet, an attempt was made to assign the value 9223372036854775807 to a long variable named testLong. However, the compiler alarmingly retorted with the message: "The literal 9223372036854775807 of the type int is out of range."

This incongruous error stems from the compiler mistakenly interpreting the literal as an int data type, which has a much smaller value range. To rectify this misunderstanding, a simple tweak is necessary. Appending a capital L to the end of the literal will instruct the compiler to treat it as a long:

long value = 9223372036854775807L;

By incorporating this subtle adjustment, the assigned value falls seamlessly within the permissible range of the long data type. Remember, the absence of this suffix tricks the compiler into misidentifying the literal as an int, leading to the dreaded "out of range" error.

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