Java 15 面试题与答案
Question: What is the change of Helpful NullPointerExceptions in Java 15?Answer:Helpful NullPointerExceptions, introduced in Java 14, are enabled by default in Java 15 and later. "Helpful NullPointerExceptions" no longer only show us in which line of code a NullPointerException occurred, but also which variable (or return value) in the corresponding line is null and which method could therefore not be called. You can find an example in the article linked above. |
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