| 1 |
filippis |
5 |
package tools.trunk; |
| 2 |
|
|
|
| 3 |
|
|
import java.io.*; |
| 4 |
|
|
import tools.trunk.*; |
| 5 |
|
|
import java.util.LinkedHashMap; |
| 6 |
|
|
import java.util.LinkedHashSet; |
| 7 |
|
|
import java.util.ListIterator; |
| 8 |
|
|
import java.util.Iterator; |
| 9 |
|
|
|
| 10 |
|
|
public class utils4lh { |
| 11 |
|
|
|
| 12 |
|
|
private utils4lh() {} |
| 13 |
|
|
|
| 14 |
|
|
public static LinkedHashMap reverse(LinkedHashMap lhm) { |
| 15 |
|
|
|
| 16 |
|
|
LinkedHashMap rvLhm = new LinkedHashMap(); |
| 17 |
|
|
|
| 18 |
|
|
Object[] a = lhm.keySet().toArray(); |
| 19 |
|
|
|
| 20 |
|
|
for (int i = a.length-1; i > -1; i--) { |
| 21 |
|
|
rvLhm.put(a[i], lhm.get(a[i])); |
| 22 |
|
|
|
| 23 |
|
|
} |
| 24 |
|
|
|
| 25 |
|
|
return rvLhm; |
| 26 |
|
|
|
| 27 |
|
|
} |
| 28 |
|
|
|
| 29 |
|
|
public static LinkedHashMap putKeyFirst(LinkedHashMap lhm, Object key) { |
| 30 |
|
|
|
| 31 |
|
|
LinkedHashMap oldLhm = (LinkedHashMap)lhm.clone(); |
| 32 |
|
|
LinkedHashMap newLhm = new LinkedHashMap(); |
| 33 |
|
|
|
| 34 |
|
|
newLhm.put(key, oldLhm.get(key)); |
| 35 |
|
|
oldLhm.remove(key); |
| 36 |
|
|
newLhm.putAll(oldLhm); |
| 37 |
|
|
|
| 38 |
|
|
return newLhm; |
| 39 |
|
|
|
| 40 |
|
|
} |
| 41 |
|
|
|
| 42 |
|
|
public static LinkedHashSet linkedHashSetDiff(LinkedHashSet a, LinkedHashSet b) { |
| 43 |
|
|
|
| 44 |
|
|
Object obj; |
| 45 |
|
|
LinkedHashSet a_b = new LinkedHashSet(); |
| 46 |
|
|
LinkedHashSet ab = new LinkedHashSet(); |
| 47 |
|
|
LinkedHashSet all = new LinkedHashSet(); |
| 48 |
|
|
|
| 49 |
|
|
for (Iterator aItr = a.iterator(); aItr.hasNext();) { |
| 50 |
|
|
obj = aItr.next(); |
| 51 |
|
|
if (b.contains(obj)) { |
| 52 |
|
|
b.remove(obj); |
| 53 |
|
|
ab.add(obj); |
| 54 |
|
|
} else { |
| 55 |
|
|
a_b.add(obj); |
| 56 |
|
|
} |
| 57 |
|
|
} |
| 58 |
|
|
|
| 59 |
|
|
all.add(a_b); |
| 60 |
|
|
all.add(ab); |
| 61 |
|
|
all.add(b); |
| 62 |
|
|
|
| 63 |
|
|
return all; |
| 64 |
|
|
|
| 65 |
|
|
} |
| 66 |
|
|
|
| 67 |
|
|
} |
