It’s not entirely clear what you’re asking. SLF4J is a logging API. Log4j and Logback are implementations of that API (Log4j is also a standalone logging framework, of course). Graylog is a log aggregator. If you want to use SLF4J to send logging to Graylog, you will need an implementation that can somehow send log … Read more
Yes, the java string is immutable. In changeString, you are passing in a reference to the string lalala and then you are changing the reference to one that points to lalalaCHANGE!!!. The original string object is not changed, and the reference in main still refers to that original object. If you were to use a … Read more
Look at CellReference API of POI CellReference. convertColStringToIndex() should return you zero based index. solved How to get the column number by passing column name in Java
From just the perspective of “sorting three strings”, you could just need to do three comparisons and lose all those temp variables. public static void stringOrder(String a, String s, String d) { String tmp; if (a.compareTo(s) > 0) { tmp = a; a = s; s = tmp; } if (a.compareTo(d) > 0) { tmp … Read more
From eclipse, you can go to Preferences->Maven->Installations. Click the Add button and put in your 3.2.5 install, then click it as the default and try building that way. 0 solved How can I change my Maven 3.3.9 in Eclipse to Maven 3.2.5?
if (kirill.equals(kirill2)){ kirill is the Scanner object, not the string. Try something like this: Scanner kirill = new Scanner(System.in); String userInput = kirill.next(); if (userInput.equals(“Java”)){ … Also, note that your code will print “yes” if the user types “Java is a programming langauge.” If you only want it to validate with just “Java,” replace next … Read more
Use ArrayList in place of String[] .. And you can also easily cast ArrayList to String[] for your final output as ArrayList<String> mStringList= new ArrayList<String>(); mStringList.add(“ann”); mStringList.add(“john”); String[] mStringArray = new String[mStringList.size()]; mStringArray = mStringList.toArray(mStringArray); 0 solved continuously changing array size [duplicate]
You should not create nodes outside of set. When you do c1.insert(n1); at first this code executes if (isEmpty()) { first = r; previousIP = first; IP = previousIP.next; size++; } which is holding in first and previousIP current node, which is node stored also by n1. But when you execute later c1.insert(n2); since c1 … Read more
You can add banner ads programmatically and show or hide them in your game’s screens via a listener. Modify your code as follows, make sure you replace “yourAdUnitId” with your real adUnit Id public class MainActivity extends Activity implements MyAdListener{ private GameView gView; AdView adView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); gView = new … Read more
You have three problems with your code: Your code does not test whether 2 is a prime, so you are missing that in your count. You should initialize counter to 0 or 1, not 2. By using while (i<=10001), you are counting until you find 10002 primes. Since you are also not counting 2, you … Read more
Ok, i got the answer, the problem was map when displayed into console will show , and [] symbol. So to avoid it use another implementation to iterate over map and not this one. solved Hashmap in Java having “[” “]” these symbols
You can do: private int getInventorySize(int max) { if (max <= 0) return 9; int quotient = (int)Math.ceil(max / 9.0); return quotient > 5 ? 54: quotient * 9; } Divide the number by 9.0. And taking the ceiling will get you the next integral quotient. If quotient is > 5, then simply return 54, … Read more
SimpleDateFormat formatter = new SimpleDateFormat(“d MMM yyyy kk:mm:ss zzz”); String str1 = “9 Oct 2014 07:09:17 GMT”; Date date1 = formatter.parse(str1); solved Compare date and time in string format [duplicate]
This is pretty awful code – useless as written. You’ve got a lot of work to do. I’d recommend that you study this and throw your code away: package persistence; import java.sql.*; import java.util.*; /** * util.DatabaseUtils * User: Michael * Date: Aug 17, 2010 * Time: 7:58:02 PM */ public class DatabaseUtils { private … Read more
Class DataInputStream A data input stream is use to read primitive Java data types from an underlying input stream in a machine-independent way. An application uses a data output stream to write data that can later be read by a data input stream. Data input streams and data output streams represent Unicode strings in a … Read more