Why do people still use primitive types in Java?

Why do people still use primitive types in Java?

java primitive primitive-types autoboxing jdk1.5

java

Java: Integer equals vs. ==

java integer wrapper primitive equals-operator

java

Java equivalent of unsigned long long?

java unsigned primitive unsigned-long-long-int

java

In Java, is the result of the addition of two chars an int or a char?

java char int primitive addition

java

How to cast Object to boolean?

java casting primitive

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Primitive type 'short' - casting in Java

java casting primitive short

java

What's the difference between primitive and reference types?

java types reference primitive

java

Converting characters to integers in Java

java integer type-conversion character primitive

java

Check type of primitive field

java reflection primitive

java

Fastest way to check if a byte array is all zeros

java arrays performance primitive

java

One-byte bool. Why?

java c++ performance boolean primitive

java

Do uninitialized primitive instance variables use memory?

java memory-management initialization primitive

java

Integer.class vs int.class

java reflection primitive

java