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Tags
#bloch-effective-java-2ed #java
Question
What is wrong with this implementation of compareTo()?

public int compareTo(PhoneNumber pn) {
    return lineNumber - pn.lineNumber;
}
Answer
if pn.lineNumber is large and negative, int substraction can overflow silently

Tags
#bloch-effective-java-2ed #java
Question
What is wrong with this implementation of compareTo()?

public int compareTo(PhoneNumber pn) {
    return lineNumber - pn.lineNumber;
}
Answer
?

Tags
#bloch-effective-java-2ed #java
Question
What is wrong with this implementation of compareTo()?

public int compareTo(PhoneNumber pn) {
    return lineNumber - pn.lineNumber;
}
Answer
if pn.lineNumber is large and negative, int substraction can overflow silently
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pdf

owner: piotr.wasik - (no access) - Effective Java (Joshua Bloch), 2ed, p66

Summary

statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Details

No repetitions

Discussion

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