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Merge pull request #1910 from wpf008/patch-1

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Update why-there-only-value-passing-in-java.md
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docs/java/basis/why-there-only-value-passing-in-java.md
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@ -177,7 +177,7 @@ int main()
{ {
int age = 10; int age = 10;
std::cout << "invoke before: " << age << "\n"; std::cout << "invoke before: " << age << "\n";
incr(age); incr(*age);
std::cout << "invoke after: " << age << "\n"; std::cout << "invoke after: " << age << "\n";
} }
``` ```