OnJava8-Examples/containersindepth/LinkedHashMapDemo.java
Bruce Eckel 49edcc8b17 reorg
2015-06-15 17:47:35 -07:00

29 lines
958 B
Java

//: containersindepth/LinkedHashMapDemo.java
// ©2015 MindView LLC: see Copyright.txt
// What you can do with a LinkedHashMap.
import java.util.*;
import com.mindviewinc.util.*;
import static com.mindviewinc.util.Print.*;
public class LinkedHashMapDemo {
public static void main(String[] args) {
LinkedHashMap<Integer,String> linkedMap =
new LinkedHashMap<>(new CountingMapData(9));
print(linkedMap);
// Least-recently-used order:
linkedMap = new LinkedHashMap<>(16, 0.75f, true);
linkedMap.putAll(new CountingMapData(9));
print(linkedMap);
for(int i = 0; i < 6; i++) // Cause accesses:
linkedMap.get(i);
print(linkedMap);
linkedMap.get(0);
print(linkedMap);
}
} /* Output:
{0=A0, 1=B0, 2=C0, 3=D0, 4=E0, 5=F0, 6=G0, 7=H0, 8=I0}
{0=A0, 1=B0, 2=C0, 3=D0, 4=E0, 5=F0, 6=G0, 7=H0, 8=I0}
{6=G0, 7=H0, 8=I0, 0=A0, 1=B0, 2=C0, 3=D0, 4=E0, 5=F0}
{6=G0, 7=H0, 8=I0, 1=B0, 2=C0, 3=D0, 4=E0, 5=F0, 0=A0}
*///:~