I believe you are looking for a regex pattern (?<!%%)(?<=%)\w+(?=%)(?!%%) That would find variables that are surrounded by a single % character on each side. Test the regex here. Java code: final Pattern pattern = Pattern.compile(“(?<!%%)(?<=%)\\w+(?=%)(?!%%)”); final Matcher matcher = pattern.matcher(input); while (matcher.find()) { System.out.println(matcher.group(0)); } Test the Java code here. UPDATE: If you want … Read more
I have just started to learn the Hibernate and found this in various online sites : mapping.xml and config.xml has to be defined outside the pojo package? You can put xml configurations whenever you want. For an example SessionFactory factory = new Configuration().configure().buildsessionFactory(); Configure a session factory from the default hibernate.cfg.xml. It is the same … Read more
well thanks for not helping me out i helped my self import java.util.ArrayList; import java.util.Arrays; import java.util.Comparator; import java.util.List; import java.util.Scanner; public class Test4 { public static void main(String[] args) { // TODO Auto-generated method stub Scanner gaba = new Scanner( System.in ); String variable; System.out.print(“Enter String:”); variable = gaba.nextLine(); SeparateGaba(variable); } public static void … Read more
You can do that with split() and some regex-magic: System.out.println( Arrays.toString( “3332255766122”.split( “(?<=(.))(?!\\1)” ) )); Output: [333, 22, 55, 7, 66, 1, 22] Regex breakdown: (?<=x) is a positive zero-width look-behind, so it will match the position right after the match for subexpression x (.) as epxression for x above is a capturing group that … Read more
Because you called a1.removeAll(a2) perhaps? http://docs.oracle.com/javase/7/docs/api/java/util/List.html#removeAll%28java.util.Collection%29 Removes from this list all of its elements that are contained in the specified collection (optional operation). So, in other words, every element that’s in a2 and also in a1 will be removed from a1. 2 solved Why an object is removed after using removeAll method
You can use the code similar to this which gives the required output public class ProgramOnStrings { public static void main(String[] args) { // TODO Auto-generated method stub Compare cobj=new Compare(); cobj.compareStrings(); } } class Compare { String s1=”helloworld”; String s2=”hord”; int array[]; String small,big; Compare() { if(s1.length()<s2.length()) { small=s1; big=s2; array=new int[small.length()]; } else … Read more
Try this: String origStr = …; StringBuilder sb = new StringBuilder(); for (int i = 0; i < origStr.length(); i++) { char ch = origStr.charAt(i); sb.append(ch); if (ch != ‘ ‘ && (i % 2 == 1)) { sb.append(‘ ‘); } } String result = sb.toString(); 6 solved Adding a space after every other digit … Read more
Your Draw class extends the android class View. You are adding a view to your layout in the onCreateMethod(): linearLayout.addView(draw); Android will call the onDraw() method in the draw object when the view is rendering. 2 solved Calling the methods in java
when you got number 5 as the printed out put you will set k++ , that will make k=6. after that k = (k – 1) + (k – 2); output k = (6-1)+(6-2) = 5+4 = 9 , (note : the next should be 8 so your algorithm is wrong) You have mistaken the … Read more
I’m not going to give you a full answer because then you wouldn’t learn from it. I am going to answer your question by giving an example of a shuffle that you could then use in your situation. This is a custom method to shuffle an array: public void shuffle(int[] t){ int temp = 0; … Read more
You are doing it wrong (insecurely). Do not encrypt the passwords on the client, send them in plain text to the server over HTTPS with a POST request. Do not encrypt the passwords on the server, use a password secure hashing method (see my comment) that includes a salt and and iteration such that the … Read more
include the order by clause to get the last 200 records. SELECT c.member_id,c.message_id, fm.firstname AS fname, up.gender, TIMESTAMPDIFF( YEAR, up.dob, NOW( ) ) AS age, c.upload_img, c.image, c.message_id AS msg_id, c.message AS msg, c.posted_timestamp AS time, c.topic_id AS topic_id, u.croppedpicture_filename,u.picture_filename FROM conversation_messages_tbl c, user_profileinformation_tbl up, user_tbl u, family_member_tbl fm WHERE c.member_id = fm.family_member_id AND up.user_id … Read more
Your so called equal sign (=) is actually assignment operator in programming world. Equal sign is double equal == which may use in logical opeartion. ctr =+ 1; // means, assign positive 1 into ctr, Compile fine ctr =- 1; // means, assign negative 1 into ctr, Compile fine ctr =* 1; //Compilation error like … Read more
I think you may have figured out by yourself that reserve words are also case sensitive when you say that Java is case sensitive. Using LONG as identifier would not cause any problem for the Java compiler, but the problem is variable name LONG may not mean much and might not contribute to a readable … Read more
I got a “null pointer exception” fault in java servlet. Could someone tell me what happens? And how to avoid that? That happens when you’re trying to access/invoke some reference which is actually null. SomeObject someObject = null; someObject.doSomething(); // Throws NullPointerException. You need to make sure that you only access/invoke it when it is … Read more