Comments on snippet: 'Iterate Map - Dump Map'

vonkinder said on 21/May/2008

Wed, 21 May 2008 04:34:31 UTC

To iterate any Map(map, hashMap, etc).

the_coder said on 04/Jun/2008

Wed, 04 Jun 2008 20:57:06 UTC

Or, with Generics (replace "Key" and "Value" with the actual types of the key and value) in Java 1.5+:

Map mp; Iterator it = mp.entrySet().iterator(); while (it.hasNext()) { Map.Entry pair = it.next(); System.out.println(pair.getKey() + " = " + pair.getValue()); }

Or, combined with the for-each loop in Java 1.5+:

Map mp; for (Map.Entry pair : mp.entrySet()) { System.out.println(pair.getKey() + " = " + pair.getValue()); }

the_coder said on 04/Jun/2008

Wed, 04 Jun 2008 20:58:57 UTC

try again [code] Map mp; Iterator it = mp.entrySet().iterator(); while (it.hasNext()) { Map.Entry pair = it.next(); System.out.println(pair.getKey() + " = " + pair.getValue()); } [/code]

[code] Map mp; for (Map.Entry pair : mp.entrySet()) { System.out.println(pair.getKey() + " = " + pair.getValue()); } [/code]

the_coder said on 04/Jun/2008

Wed, 04 Jun 2008 21:00:30 UTC

Map mp;

Iterator> it = mp.entrySet().iterator();

while (it.hasNext()) {

Map.Entry<Key,Value> pair = it.next();

System.out.println(pair.getKey() + " = " + pair.getValue());

}

Map mp;

for (Map.Entry pair : mp.entrySet()) {

System.out.println(pair.getKey() + " = " + pair.getValue());

}

the_coder said on 04/Jun/2008

Wed, 04 Jun 2008 21:01:28 UTC

Okay, got it. Or, with Generics (replace "Key" and "Value" with the actual types of the key and value) in Java 1.5+: Map mp; Iterator it = mp.entrySet().iterator(); while (it.hasNext()) { Map.Entry pair = it.next(); System.out.println(pair.getKey() + " = " + pair.getValue()); }

Or, combined with the for-each loop in Java 1.5+: Map mp; for (Map.Entry pair : mp.entrySet()) { System.out.println(pair.getKey() + " = " + pair.getValue()); }

the_coder said on 04/Jun/2008

Wed, 04 Jun 2008 21:02:12 UTC

Map mp;

Iterator> it = mp.entrySet().iterator();

while (it.hasNext()) {

    Map.Entry pair = it.next();

    System.out.println(pair.getKey() + " = " + pair.getValue());

}

Map mp;

for (Map.Entry pair : mp.entrySet()) {

    System.out.println(pair.getKey() + " = " + pair.getValue());

}