when i try to click some name from listview, i want it to return the ID from its name(in Toast Text), but i always getting result “0” wherever i click a name in listview, can you help me fix my code?, thanks MainActivity.java DatabaseHelper.java Answer Try this: Cursor getNoteId = myDB.rawQuery(“select id from notepadData where notepad like + “‘” +
How to declare a numerical variable in java that is to hold a digit value with a fixed length of 3 digits always.
How to declare a numerical variable in Java that is to hold a digit value with a fixed length of 3 digits always. That is if i input 0, it should be formated to 000, if i input 31 then it should be formated to 032 and if i input 100 then it should remain 100. I need this for
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Code below makes foo value as -1149239296 i. e. integer value which is out of bounds: Seems like Java takes type of first parameter and tryes to return formula’s result with that type. Where in Java specification one can read that story? I made such suggestion cause actually returns sets long value to foo. Answer For this case, casting any
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While running my code I am getting a NumberFormatException: How can I prevent this exception from occurring? Answer “N/A” is not an integer. It must throw NumberFormatException if you try to parse it to an integer. Check before parsing or handle Exception properly. Exception Handling or – Integer pattern matching –
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I need to convert a number into an unsigned byte. The number is always less than or equal to 255, and so it will fit in one byte. I also need to convert that byte back into that number. How would I do that in Java? I’ve tried several ways and none work. Here’s what I’m trying to do now:
Convert boolean to int in Java
What is the most accepted way to convert a boolean to an int in Java? Answer ^^ PS : true = 1 and false = 0
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I keep finding both on here and Google people having troubles going from long to int and not the other way around. Yet I’m sure I’m not the only one that has run into this scenario before going from int to Long. The only other answers I’ve found were “Just set it as Long in the first place” which really