java

[Solved] Decrypt aes encrypted file in java sha1 openssl

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The below code is doing a complete file encryption and decryption and is compatible to the OpenSSL commands encrypt: openssl enc -aes-256-cbc -pass pass:testpass -d -p -in plaintext.txt -out plaintext.txt.crypt -md md5 decrypt: openssl aes-256-cbc -d -in plaintext.txt.crypt -out plaintext1.txt -k testpass -md md5 I left out some variables as they are not used in … Read more

[Solved] String To int [] in java [closed]

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You should first split the String with the method split(), and afterwards convert the strings into integers. String str = “1,2,3,4”; String strs[] = str.split(“,”); int ints[] = new int[strs.length]; for (int i = 0; i < strs.length; i++) ints[i] = Integer.parseInt(strs[i]); 0 solved String To int [] in java [closed]

[Solved] Array Default Constructor [closed]

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You can do this: public class IntArrayDemo { private static final int DEFAULT_SIZE = 10; private int [] values; public IntArrayDemo() { this(DEFAULT_SIZE); } public IntArrayDemo(int size) { if (size < 0) throw new IllegalArgumentException(“size cannot be negative”); this.values = new int[size]; } } solved Array Default Constructor [closed]

[Solved] Using the camera of the laptop with swing in java [closed]

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Using Webcam Capture project. Example from author for the API usage: Webcam buildin = Webcam.getWebcams().get(0); // build-in laptop camera Webcam usb = Webcam.getWebcams().get(1); // usb camera BufferedImage image1 = buildin.getImage(); BufferedImage image2 = usb.getImage(); // do with image1 and image2 whatever you want 11 solved Using the camera of the laptop with swing in java … Read more

[Solved] a constructor having 2 parameters

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As you have created an instance of the class Bachcha in your main method, you can use that instance to access the methods. String n = System.console().readLine(“enter name”); String g = System.console().readLine(“enter gender”); Bachcha b = new Bachcha(n, g); b.getName(); b.getGender(); solved a constructor having 2 parameters

[Solved] Check if element in for each loop is empty

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Based on the fact that your images is a available ArrayList<>, you should do like this: if(images.size() > 0){ for (Element src : images){ if (src != null) { System.out.println(“Source ” + src.attr(“abs:src”)); } } } else { System.out.println(“There are no elements in ArrayList<> images”); } First you check if there are elements in the … Read more

[Solved] Date between other Dates java.time [duplicate]

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The LocalDate class has isAfter(LocalDate other) isBefore(LocalDate other) isEqual(LocalDate other) methods for comparisons with other dates. Here is an example: LocalDate today = LocalDate.now(); LocalDate tomorrow = LocalDate.now().plusDays(1); LocalDate yesterday = LocalDate.now().minusDays(1); if(today.isAfter(yesterday) && today.isBefore(tomorrow)) System.out.println(“Today is… today!”); solved Date between other Dates java.time [duplicate]

[Solved] code go to other activity from main activty Adapter [closed]

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Declare new variable in adapter Context mContext; replace your adapter constructor MyAdapter(String Titles[], int Icons[], String Name, String Email, int Profile) { mNavTitles = Titles; mIcons = Icons; name = Name; email = Email; profile = Profile; } with below MyAdapter(String Titles[], int Icons[], String Name, String Email, int Profile,Context cntx) { mNavTitles = Titles; … Read more

[Solved] How to Delete files from the directory by specifying it in the output application

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it has to search the directory which conrtains subfolders also it has to search along the sub folders Your method to search a directory needs to be recursive. Here is an example of a recursive method that lists the files in all the sub directories: import java.awt.*; import java.awt.event.*; import java.io.*; import java.util.*; import javax.swing.*; … Read more

[Solved] how to put JavaFX in JPanel?

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Use a JFXPanel. From the documentation => public class Test { private static void initAndShowGUI() { // This method is invoked on Swing thread JFrame frame = new JFrame(“FX”); final JFXPanel fxPanel = new JFXPanel(); frame.add(fxPanel); frame.setVisible(true); Platform.runLater(new Runnable() { @Override public void run() { initFX(fxPanel); } }); } private static void initFX(JFXPanel fxPanel) { … Read more

[Solved] Undefined method why?

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Your problem lies here: public void main(String args[]) { System.out.println(“Set health”); h = sc.nextInt(); l(h); //Root of your problems } method l() is undefined under the scope of class f1. Meaning that f1 do not understand what is l(). To let class f1 know what is it, you can: public void main(String args[]) { System.out.println(“Set … Read more

[Solved] Java how to get certain word from array [closed]

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Make use of split method in String. Assuming you have standard format. String [] commasplit = Array[0].split(“,”); And then String [] allocated = commasplit[1].split(” : “); String allocatedValue = allocated[1] //2B (13) Given the codes, write a generic method with method params, so that you won’t end up in writing it multiple times. 3 solved … Read more