Write a static method named countevendigits that accepts an integer as its
parameter and returns the number of even-valued digits in that number. an even-valued digit is either 0,
2, 4, 6, or 8. for example, the number 8546587 has four even digits (the two 8s, the 4, and the 6),
so the call countevendigits(8346387) should return 4. you may assume that the value passed to
your method is non-negative.

answer: internal fragmentation is the difference between the (fixed) size of a memory hole and the data within in that memory. for example, if a 1,024 byte block of memory holds 800 bytes of data, then the 224 bytes difference is considered lost to internal fragmentation.

external fragmentation occurs when the sum of memory fragments is large enough to satisfy a request, but the holes are non-contiguous and the request cannot be satisfied. this can occur when memory is dynamically allocated and freed.

explanation:

answerpanning and scanning;

solution:

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