Java SE 8 Programmer II

Oracle Certified Professional: Java SE 8 Programmer II (1Z0-809)

Advanced Java Class DesignEnglish
Exam overview

Practice session

Given two interfaces with the SAME default method signature: interface X { default String id() { return "X"; } } interface Y { default String id() { return "Y"; } } class C implements X, Y { } What happens?

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