29 lines
947 B
Java
29 lines
947 B
Java
// containersindepth/LinkedHashMapDemo.java
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// ©2016 MindView LLC: see Copyright.txt
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// What you can do with a LinkedHashMap.
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import java.util.*;
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import onjava.*;
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public class LinkedHashMapDemo {
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public static void main(String[] args) {
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LinkedHashMap<Integer,String> linkedMap =
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new LinkedHashMap<>(new CountingMapData(9));
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System.out.println(linkedMap);
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// Least-recently-used order:
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linkedMap = new LinkedHashMap<>(16, 0.75f, true);
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linkedMap.putAll(new CountingMapData(9));
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System.out.println(linkedMap);
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for(int i = 0; i < 6; i++) // Cause accesses:
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linkedMap.get(i);
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System.out.println(linkedMap);
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linkedMap.get(0);
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System.out.println(linkedMap);
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}
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}
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/* Output:
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{0=A0, 1=B0, 2=C0, 3=D0, 4=E0, 5=F0, 6=G0, 7=H0, 8=I0}
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{0=A0, 1=B0, 2=C0, 3=D0, 4=E0, 5=F0, 6=G0, 7=H0, 8=I0}
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{6=G0, 7=H0, 8=I0, 0=A0, 1=B0, 2=C0, 3=D0, 4=E0, 5=F0}
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{6=G0, 7=H0, 8=I0, 1=B0, 2=C0, 3=D0, 4=E0, 5=F0, 0=A0}
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*/
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