ew HMap<
package ch08.apps;
import ch08.maps.*;
public class HMapDriver
{
public static void main(String[] args)
{
boolean result;
HMap<String, String> test;
test = new HMap<String, String>(10,0.75);
/*
String s = null;
test.put(s,"value");
test.put("s",null);
System.out.println("Expect 'null':\t" + test.get("s"));
System.out.println("Expect 'true':\t" + test.contains("s"));
test = new ArrayListMap<String, String>();
*/
System.out.println("Expect 'true':\t" + test.isEmpty());
System.out.println("Expect '0':\t" + test.size());
System.out.println("Expect 'null':\t" + test.put("1", "One"));
System.out.println("Expect 'false':\t" + test.isEmpty());
System.out.println("Expect '1':\t" + test.size());
System.out.println("Expect 'One':\t" + test.put("1", "One"));
System.out.println("Expect 'false':\t" + test.isEmpty());
System.out.println("Expect '1':\t" + test.size());
test.put("2", "Two");
test.put("3", "Three");
test.put("4", "Four");
test.put("5", "Five");
System.out.println("Expect '5':\t" + test.size());
System.out.println("Expect 'Three':\t" + test.put("3", "Three XXX"));
System.out.println("Expect 'Three XXX':\t" + test.put("3", "Three"));
System.out.println("Expect '5':\t" + test.size());
System.out.println("Expect 'true':\t" + test.contains("5"));
System.out.println("Expect 'false':\t" + test.contains("6"));
System.out.println(test);
test.put("d","d");
System.out.println(test);
System.out.println("Expect 'true':\t" + test.contains("d"));
System.out.println("Expect 'false':\t" + test.contains("e"));
System.out.println("Expect 'One':\t" + test.get("1"));
System.out.println("Expect 'One':\t" + test.get("1"));
System.out.println("Expect 'Two':\t" + test.get("2"));
System.out.println("Expect 'Three':\t" + test.get("3"));
System.out.println("Expect 'Four':\t" + test.get("4"));
System.out.println("Expect 'Five':\t" + test.get("5"));
System.out.println("Expect 'null':\t" + test.get("6"));
test.put("e","e");
System.out.println(test);
System.out.println("\nThe Map is:\n");
for (MapEntry<String,String> m: test)
System.out.println(m + "\n");
System.out.println(1);
test.put("f","f");
System.out.println(2);
System.out.println(test);
System.out.println(3);
System.out.println("\nThe Map is:\n");
for (MapEntry<String,String> m: test)
System.out.println(m + "\n");
System.out.println(4);
}
}
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