Short answer you cant. If you dont want anyone getting information on your application, dont put it there. Longer answer? You would need some sort of server and a well written API (REST) where you can do callbacks to files (json). If you prefer not to write your own API, then you can use Parse-Server … Read more
You’re creating a Boolean object representing a false value, because the string parameter is not “true” (ignoring case). Boolean b=new Boolean(“T87778rue”); Next, you check whether the Boolean object representing false is equal to 10. It’s not. int i = 10; System.out.println(b.equals(i)); From the Boolean constructor API documentation: Boolean(String s) Allocates a Boolean object representing the … Read more
Since this is clearly a homework exercise, it is not appropriate for me to provide an answer directly. Instead, I have written a little program for you to demonstrate what the question means, and running it will provide an answer. You can try this out for yourself: public class Main { class A {} class … Read more
To get value or multiple values you need a cursor, see the following function (that return the first value it’s perfect to get id’s, for example): public String getSingular_Value_InTransaction(String query){ //Declaration of variables Cursor a1 = null; try{ a1 = database.rawQuery(query,null); a1.moveToFirst(); if(a1.getString(0) != null){ String result = a1.getString(0); a1.close(); return result; } else{ a1.close(); … Read more
You do a lot of stuff differently for each player for no reason. It would be much more helpful if you narrowed down what part of the code the error was coming from or at least told us which player doesn’t work and which does. I’m not going to read all of the code you … Read more
There is no easy answer For starters there are no easy solutions. I noticed somebody mentioning Boolean.valueOf(…); The goal of the Boolean.valueOf(String) method is not to evaluate conditions or equations. It is just a simple method to convert a String with value “true” or “false” to a Boolean object. Anyway, if you want this kind … Read more
index is a keyword, if you use this as a column name try escaping it with tilts. (`) …. PreparedStatement ps=(PreparedStatement) dbConnection.prepareStatement(” select `index` from books where `index`=? “); …. solved Can anyone please correct this SQL syntax exception
Well adding two Strings is simply concatenation using the + operator: //first and second should be declared as String. String both = first + second; Look here to see how to remove duplicate characters from a String. Lastly, the ascii value of a character is just the int value of that character. Because of this … Read more
indexOf expects an Object. get gets the item at the specified index previousUrl = historyArray.get(arraySizelink); 2 solved string variable to index of String array ??? JAVA
Java possesses the function Math.random() which returns a number that varies between 0 and 1. Therefore, if you want a random number to vary between 0.5 and 1 only, you need to scale this number by half so that it only varies between 0 and 0.5, and then add this to the minimum value in … Read more
Try adding this line above your main java code: import android.support.design.widget.CoordinatorLayout; 0 solved How to fix “coordinatorLayoutStyle” issue with Android Studio starting project? [closed]
public static Level level; level = new Level(); is same as public static Level level = new Level(); If you just consider the statement public static Level level; level being an static variable is set to null.(All instance variables and static variables are assigned default values unlike local variables.) level.render(g); This is calling an function … Read more
1. In your create table String, String newTableQueryString = “create table ” + TABLE_NAME + ” (” + TABLE_ROW_ID + ” integer primary key autoincrement not null, ” + TABLE_ROW_ONE + ” text, ” + TABLE_ROW_TWO + ” text, ” + TABLE_ROW_THREE + ” text, ” + TABLE_ROW_FOUR + ” text” + “);”; The ROW_ID … Read more
You can use the TelephonyManager class for IMEI , Phone Number and use the LocationManger class for location. Use this code: TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); // get IMEI String imei = tm.getDeviceId(); //get The Phone Number String phone = tm.getLine1Number(); 1 solved Access phone information [closed]
Java will run your code sequentially unless u tell it otherwise (by creating threads.) If you jave an infinite loop in function doSomthingElse() then doYetAnotherThing() will never execute and doSomething will never terminate. public static void main(String[] args) { doSomethingElse(); doYetAnotherThing(); } private static void doYetAnotherThing() { System.out.println(“Hi Agn”); } private static void doSomethingElse() { … Read more