import java.util.Hashtable;
public class Main{
public static void main(String[] s) {
Hashtable<String,String> table = new Hashtable<String,String>();
table.put("key1", "value1");
table.put("key2", "value2");
table.put("key3", "value3");
Hashtable<String,String> table2 = new Hashtable<String,String>();
table2.put("key4", "value4");
table2.put("key5", "value5");
table2.put("key6", "value6");
table2.putAll(table);
System.out.println(table2);
}
}
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