SYSERR(root): hash map "Alias0"
Hi,
I am getting the following errors on Solaris 10, can anybody help me how to fix these errors?
SYSERR(root): hash map "Alias0": unsafe map file /etc/mail/aliases.db: World writable directory"
SYSERR(root): dbm map "Alias0": unsafe map file /etc/mail/aliases: No such file or directory"
Thanks in advance
Br
MJ Awan
those errors are telling you:
1. that you need to run /etc/mail/cf/sh/check-permissions. Also check that your / (root) directory perms are 755.
2. you need to create or restore your /etc/mail/aliases file. Hopefully you have an /etc/mail/aliases.db file?
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Generated servlet error
C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\exam\org\apache\jsp\availability_jsp.java:752:
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i'm getting this error
C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\exam\org\apache\jsp\editdel_jsp.java:85: cannot resolve symbol
symbol : method getDouble (java.lang.String)
location: interface java.util.Map
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^
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I i have the data in below format:
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I converted this data into java collections List<Hash Map> like this.
import java.util.ArrayList;
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import java.util.Iterator;
import java.util.List;
public class HashMapDemo {
public static void main(String[] args) {
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List<HashMap> list = new ArrayList<HashMap>();
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hm1.put("Name", new String("Samy"));
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hm1.put("Company", new String("HP"));
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HashMap hm2 = new HashMap();
hm2.put("Name", new String("Lee"));
hm2.put("Age", new Integer(18));
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HashMap hm3 = new HashMap();
hm3.put("Name", new String("Reng"));
hm3.put("Age", new Integer(16));
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Iterator i = list.iterator();
while (i.hasNext()) {
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List<HashMap> is type of collection is help to me?
Any idea?
Thanks,
Vass LeeCheck out Comparator, and use Google to find examples on how to use it.
http://download.oracle.com/javase/6/docs/api/java/util/Comparator.html
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Hi,
[b] how to sort hash map contains integer objects,
HashMap map=new HashMap();
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if i am using treemap
TreeMap map1=new TreeMap(map);
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If you want to use a Map which adds all elements according to the order you've added it, then use LinkedHashMap.
And if you want to capture the keys, use Map.values() which returns an ordered Collection (and after converting it to List, you can sort it).
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Is there any linked hash map in flex??
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Is it possible to insert a value in a hash map at a perticular index ?
Hello Techies,
I have a drop down list which is used to select a contry name. I also contains " All " option which is used to select all countries.
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JavedNow, my requirement is the " All " should display as the first in the drop down
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for this i tried creating a dictionary class.
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Here's a small demo:
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// your code here
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// ... other methods ...
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Dictionary dict = new Dictionary();
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dict.addWord("Abode", "House");
dict.addWord("Car", "Automobile");
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Ultra 60 NOQUEUE: SYSERR(root): service "smtp" unknown: Not enough space
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Jackhi Gerdts,
I try as what you said to generate the crash dump but i can not find any files in the /var/crash/ and no such directory was generated.
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panic[cpu2]/thread=0x6153a9a0: zero
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Edited by: 994409 on Apr 8, 2013 6:50 PM -
My while loop doesnt seem to work in a hash map, it works fine when I loop an array list.
It compiles but it doesnt seem to find any employees, should I use another loop?
{code
public Employee find(String id)
Employee foundEmployee = null;
int index = 0;
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what if you looped on the key set?
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Employee foundEmployee = null;
Set<Integer> keySet = register.keySet();
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if (right.getName().equals(id))
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what if you looped on the key set?
public Employee find(String id)
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Hi
Just a quick one
I have two hash maps - each containing information on the location of characters in a individual string.
Is there some sort of method that allows me to compare the two maps and return the string locations where they contain the same information ?
Hi evett,
You might want to check out the method "entrySet()" in the Map class, once you get the 2 Set's, you can then use the "retainAll()" method of a Set to only keep the information that is the same in both Set's (which contains the information you want).
Good Luck,
Bud
Hashing / Mapping question
Hello,
I have an application that creates images based on several integer parameters. In order to speed things up, I want to cash the images in a Map so that I don't need to recreate images whose parameters have already been seen.
Using decimal digits, the ranges of my params are as follows:
1 digit (range 0-3)
3 digits(range 0-999)
4 digits(range 0-4095)
4 digits(range 0-4095)
I want to come up with a unique key based on the possible values of my params. One simple way to do this would be to simply concatenate the values paying attention to 'place value.' So the lowest map value would be zero (all four params 0) and the highest value would be
399940954095 (i.e. 3-999-4095-4095)
but this gives me a value greater than max int.
Can someone suggest a method that would yield a unique integer for each unique combination of my parameters?
Thanks,
Ted
class Key
private final int a;
private final int b;
private final int c;
private final int d;
private final int hash;
public Key(final int a, final int b, final int c, final int d)
this.a = a;
this.b = b;
this.c = c;
this.d = d;
hash = a + 29 * b + 47 * c + 59 * d;
public boolean equals(Object o)
if (o == null || o.getClass != Key.class) return false;
Key other = (Key) o;
return a == other.a && b == other.b && c == other.c && d == other.d;
public int hashCode()
return hash;
}
I have a hashmap with strings as keys, and float values as values, like below:
{"anne=0.23453, barry=1.254339,steven=0.12449... }
what i want to do is sort this hashmap according to the float values, returning the highest float value first. What i am currently doing is, swapping the keys with the values, so that the floats are the keys, and sorting them with a hashmap:
Set set = map1.keySet();
Map invertedMap = new HashMap();
for(Object o : set)
float val = (Float)map1.get(o);
invertedMap.put(val, o);
TreeMap sorted = new TreeMap(Collections.reverseOrder());
sorted.putAll(map1);
Set set1 = sorted.keySet();
Iterator it = set1.iterator();
while(it.hasNext()) {
Object o = it.next();
System.out.println( o + " " + map1.get(o));
}The problem here is that in the hash tables there a few floats are the same value, ie henry=1.6743, and mary=1.6743
so when i invert the hash table, making 1.6743 one of these is ignored. Can anbody think of a way i can do this?
Id appreciate any help
Thanks
Thanks, ive stored the entrySet in a list. A little
unsure how to go about writting comparator to sort
them by value though. Would you be able to explain
this in a little more detail, please?Write a class that implements java.util.Comparator. Thre's but one method to implement, that is
public int compare(Object o1, Object o2);
Expect the arguments to be keys in your map. Fetch the value for each key and compare the values. That should be a problem since, if I got it right, those are java.lang.Floats, which implement java.lang.Comparable, so you can simply return: value1.compareTo(value2).
Take a minute or two to read the Javadoc of the Comparator's compare method.
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