As long as Constructor remains commented out, not showing anything is correct behaviour. public static void main(String[] args) { startScreen a = new startScreen(); } Try it this way (and edit your post to include source) As MadProgrammer mentioned – you need to make the Frame visible to make all the Components within visible: // … Read more
You already have created methods so you know how to do this. You can create another method called reverseUsingPop(char[] characters). and in here execute the loop to print them. From looking at your code it seems like you should have seen everything to do this. So from your main method you can call that method. … Read more
if doesn’t cause the condition to be evaluated in a loop. You need to use a loop for that. while (x<3) { //changes made to to mydogs[x] are irrelevant to the execution of the loop x = x+1; } This loop will run continually until the condition x < 3 evaluates to false, which will … Read more
Below code is in java for 3DES encryption and decryption. please try with this code. I hope it will help you private static final String UNICODE_FORMAT = “UTF8”; public static final String DESEDE_ENCRYPTION_SCHEME = “DESede”; //”DESede/ECB/NoPadding”; private KeySpec ks; private SecretKeyFactory skf; private Cipher cipher; byte[] arrayBytes; private String myEncryptionKey; private String myEncryptionScheme; SecretKey key; … Read more
for(int i = 1; i <= currentSize; i++) list[i] = valuesHolder[i]; This part is the culprit. You have to copy contents of ‘list’ to newly created array ‘valuesHolder’. Instead you are doing the other way, which results in ‘null’ entries. The change you have to make is this: for(int i = 1; i <= currentSize; … Read more
Here is one simple way to do it. It presumes that a space separates words. It works as follows: find the index of the first space starting at the desired length of the string. if the return value is -1 (no space found), use the string length. get the substring from 0 to that index. … Read more
Use apache poi to play with xls files http://poi.apache.org/ Here is a good tutorial : http://www.avajava.com/tutorials/lessons/how-do-i-write-to-an-excel-file-using-poi.html package test; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.util.Date; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFDataFormat; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.hssf.util.HSSFColor; public class PoiWriteExcelFile { public static void main(String[] args) { try { FileOutputStream fileOut = … Read more
First of all, change 10**i to Math.pow(10,i). Then name your char[] array. Let’s call it c. Then, change c[i] to c[i]-‘0’, assuming c[i] is a digit. private int parseInt(char[] c) { int parsed = 0; for (i=0 ; i < c.length; i++) parsed += Math.pow(10,i) * (c[i]-‘0’); return parsed; } 3 solved Parsing an array … Read more
The thread you create in main invokes MyThread#k() which goes into a wait. At that point, that thread will do nothing else until it is awakened or interrupted. But the only place in your code where it could possibly be awakened is the notify in MyThread#m(). Since nothing in your program calls that method, the … Read more
The “core” of LibGDX is always your ApplicationListener class. It contains all the Lifecycle-Hooks the different platforms offer (including create, dispose and so on). The class Game is just one implementation of the ApplicationListener, containing the most usual behavior. For most of the games this class does a great job, if you need some speicial … Read more
It’s simple, you multiple the number of dollars by 100 and you get the number of cents, then you calculate how many nickels, dimes etc that would be. For example, $5.26 is 526 cents, which is 10 half dollars ($5), 1 quarter, 1 penny. Integer division gives you the number of times X is contained … Read more
Thread.sleep which stops all processing, so what if you had a loop inside it, and what if this loop was comparing identical objects? Would it keep creating a new instance of this loop?, and if it does what is the end result, say, if it was processing some heavy duty instructions in that loop? no, … Read more
I used akhilesh0707 answer, but I changed it. public customList(Activity activity, List<itemsModel> itemsList) { this.activity = activity; this.itemsList = itemsList; inflater = activity.getLayoutInflater(); customFontBold = Typeface.createFromAsset(activity.getApplication().getAssets(), “fonts/Assistant-Bold.ttf”); } Thanks akhilesh0707. solved custom font in customAdapter
Use String str = String.format(“%tM”, date ); You get the exception because you try to convert a String “Current Date/Time : xx” to a number; 1 solved How i convert String to int? [duplicate]
public static void main(String args[]) { Stack stack = new Stack(); for (int i = 1; i <= 10; i++) stack.push(new Integer(i)); while (!stack.empty()) System.out.print(stack.pop() + ” “); System.out.println(” No element in stack”); } This works fine for me. solved how to Permanentaly remove data from stack once it has been pop out