4. Consider the following Java implementation which simulates a k-way hardware cache interface Memory ( void set (int addr, Object x) Object get (int addr; class Entry boolean dirty; int addr Object data; public class Cache implements Memory ( Entry table; int] toremove; Memory memoryi Override public void set (int addr, Objectx) ( int pos-internalGet (addr) table [pos].data-x,; table [pos].dirty -true @Override public object get (int addr) f int pos-internalGet (addr) if (table [pos].datanul1) table [pos].data-memory.get (addr);
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