java Archives - Page 91 of 287

[Solved] the error occurs when I use custom textview in the android studio

December 14, 2022 by Kirat

Try this following code for custom textview import android.content.Context; import android.graphics.Canvas; import android.graphics.Typeface; import android.util.AttributeSet; import android.widget.TextView; public class FontTextView extends TextView { public FontTextView(Context context) { super(context); Typeface face=Typeface.createFromAsset(context.getAssets(), “Helvetica_Neue.ttf”); this.setTypeface(face); } public FontTextView(Context context, AttributeSet attrs) { super(context, attrs); Typeface face=Typeface.createFromAsset(context.getAssets(), “Helvetica_Neue.ttf”); this.setTypeface(face); } public FontTextView(Context context, AttributeSet attrs, int defStyle) { super(context, … Read more

[Solved] Code fails when class definition closed [closed]

December 14, 2022 by Kirat

There’s an extra unnecessary } in your app. I thing you just put extra one at line System.out.println(“Nope.”);} Remove it and the code will compile, making your IDE happy =) Or remove any other closing } at the end of the program. 1 solved Code fails when class definition closed [closed]

[Solved] displaying images Gallery from assets/images

December 14, 2022 by Kirat

The question is not clear, if you want to load a single image from assets, then you can do it this way. //read image from asset InputStream is = getAssets().open(“image.jpg”); // create a drawable Drawable drawable = Drawable.createFromStream(is, null); //find reference to your imageview and set drawable ImageView i=(ImageView)findViewById(R.id.image_id); i.setImageDrawable(drawable); 2 solved displaying images Gallery … Read more

[Solved] Cannot invoke split(String) on the array type String[] [duplicate]

December 14, 2022 by Kirat

You can’t do split on a list, once you split the string then you have an array of all the IPs then you can check // 123.11.1.1, 123.1.1.12, 123.322.12.1 String[] list = merchant.getAllowed_ip_address().split(“,”); String ip = request.getRemoteAddr(); for (String allowedIP : list) { if (!ip.trim().equals(allowedIP.trim())) { // Not in list } } Also, you can … Read more

[Solved] How to read from textfile in java? [closed]

December 14, 2022 by Kirat

What you want is to use a BufferedReader instance to read from the file, and parse each line that you get from it. For example: try { BufferedReader reader = new BufferedReader(new FileReader(“filename”)); String line; while ((line = reader.readLine()) != null) { // parse your line here. } reader.close(); // don’t forget to close the … Read more

[Solved] Remove random string between two string android [closed]

December 13, 2022 by Kirat

You can use String#replaceAll() for this: String cleanPage = wikiPage.replaceAll(“\\[a href=.*?\\]”, “”)); 1 solved Remove random string between two string android [closed]

[Solved] What function would I need to use to block other apps/websites in my app? [closed]

December 13, 2022 by Kirat

So for a second app this is bit adventurous, but i will give you hints anyways ! Create a custom android launcher which will have two modes. Study mode and play mode. In study mode allow all the apps.and in the child mode allow on specified apps to be launched. There are multiple opensource launcher … Read more

[Solved] Object in one class is the instance variable in the other. Relation between those classes?

December 13, 2022 by Kirat

The two classes are certainly related i.e. they have an Association. But, the nature of their relationship could either be an Aggregation or Composition. To give you an example and thereby explain how it’s different than Inheritance; consider the following classes: Shape (Base class; can be abstract) Circle, Triangle, Square etc. (Derived classes) Line, Colour … Read more

[Solved] Array Index out of Bounds, not sure what’s going on (JAVA)

December 13, 2022 by Kirat

Index out of bounds exception means that you are trying to access a index that doesn’t exists. Say that you have an array with 9 elements. array[9] will be the 10th and it wont exists. 2 solved Array Index out of Bounds, not sure what’s going on (JAVA)

[Solved] How to find words that are different between two Strings? [closed]

December 13, 2022 by Kirat

if it’s only words you can split the strings to string[] that each cell will contain 1 word only and then compare those words. Goes as follows: String one = “this is first text example”; String two = “this is next text example”; String[] oneVals = one.split(“\\ “); String[] twoVals = two.split(“\\ “); int i … Read more

[Solved] how to put values into HashMap [closed]

December 13, 2022 by Kirat

try this.. HashMap<Integer, List<String>> map = new HashMap<>(); List<String> list = new ArrayList<>(); list.add(“a”); list.add(“b”); list.add(“c”); map.put(1, list); 4 solved how to put values into HashMap [closed]

[Solved] ArrayList.size() returns size of field, not the size of the List, why? [closed]

December 13, 2022 by Kirat

Note, you don’t need the size of the arraylist to iterate over it. You can simply do for (Entity e : myList){ //Do stuff with e } If you do need the index and hence need to call .size(), please post some sample code so someone can see what’s going wrong. 7 solved ArrayList.size() returns … Read more

[Solved] Is the ‘this’ pointer only hidden in C++ or in java too? [closed]

December 13, 2022 by Kirat

Hidden? It’s not hidden. What does that even mean? I do remember that you have to explicitly use it in Java Only in some circumstances. A variable called name could be known inside the class and also be the name of a parameter in a method. Example: class Test { String name; public void test(String … Read more

[Solved] How do we generate a random but unique number in Java [closed]

December 13, 2022 by Kirat

You could use java.util.Random – http://java.about.com/od/javautil/a/randomnumbers.htm 1 solved How do we generate a random but unique number in Java [closed]

[Solved] Can someone help me for convert this c# recursive function to java [closed]

December 13, 2022 by Kirat

public final boolean ParantezKontrol(String input) { return ParantezKontrol(input, 0); } //Java does not support optional parameters. So you can overload this method //ORIGINAL public bool ParantezKontrol(string input, int numOpen = 0) public final boolean ParantezKontrol(String input, int numOpen) { if (numOpen < 0) { return false; } if (isNullOrEmpty(input)) { return numOpen == 0; } … Read more