Just compare the current element to previous one, count the number of consecutives, and if consecutive element is detected, check if it is more than existing maximum and track the value: public static int findMostConsecutive(int … arr) { int res = arr[0]; int count = 1; int maxCount = 1; for (int i = 1; … Read more
I have same problem and resolved by this way. Step1: Click File/Setting/Build Execution,Development/Gradle then uncheck “Offline work”. Step2: File/Invalidate Caches and Restart then select “Invalidate Caches and Restart”. That’s it. solved Android studio: Error:Could not download javawriter.jar
you can do it with printf Java printf( ) System.out.printf( “format-string” [,arg1, arg2, … ] ); //%s for string. %d for decimal integer, %c for character. System.out.printf(“%s\n%s”,myNames[1], myNames[2]); or with println System.out.println(myNames[1] + “\n” + myNames[2]); for more information you can check this site. https://www.cs.colostate.edu/~cs160/.Spring16/resources/Java_printf_method_quick_reference.pdf 1 solved printing multiple results using, System.out.println
How to do it ? If you meet {} in your code , you can use JSONObject to parse it . If you meet [] in your code , you can use JSONArray to parse it . And if you meet [] in your code , you can use for loop to get value in … Read more
Change your onBindViewHolder method like this: ….. holder.itemView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { // no neeed this condition //if (PizzaActivity.class != null){ if(position == 0){ Intent intent = new Intent(activity, Pizza1Activity.class); activity.startActivity(intent); } if(position == 1){ Intent intent = new Intent(activity, Pizza2Activity.class); activity.startActivity(intent); } if(position == 2){ Intent intent = new Intent(activity, … Read more
So you could parse it to a string and get the numbers that way like: int num = …; string numbS = Integer.toString(num); char char1 = numbS.charAt(0); int num1 = Character.getNumericValue(char1); Or you could do it by dividing by 10 and then the remainder of ten: int digit2 = (num / 10) % 10; 1 … Read more
First of all, this test won’t work in Java 9 or later. Attempting to compile the String class will give this error: java/lang/String.java:1: error: package exists in another module: java.base package java.lang; ^ On Java 8, I get the behavior you see. Assuming that the tweaked String class is in the same source tree, the … Read more
Why doesn’t std::vector or other containers have length as a member variable, instead of a function? Because it would be writable if it was a public member variable. Since it makes no sense to write to the size member of a vector, the designers made the size member private and provided a size() method to … Read more
From what little information you’ve given, I’d say you’re executing it the wrong way. Make sure you run the following two commands: javac HelloPrinter.java java HelloPrinter The first command compiles your source code into a .class file. The second command executes that class file. 2 solved Finding Main Class in “Hello World” program in Java … Read more
Since you edited the question and clarified that you are using a JTextField I will reorder the answer: You don’t see any output because the action command has not been set so there is nothing to display. Try using the following in your ActionListener: JTextField textField = (JTextField)e.getSource(); System.out.println( textField.getText() ); Of course this will … Read more
Well, many down votes but I’ll add a solution the most efficient way to do that is using java.lang.String#lastIndexOf, which returns the index within this string of the last occurrence of the specified character, searching backwards lastIndexOf will return -1 if dash does not exist String str = “first-second-third”; int lastIndexOf = str.lastIndexOf(‘-‘); System.out.println(lastIndexOf); System.out.println(str.substring(0, … Read more
You have what is known as a double encoding. You have the three character sequence “你好吗” which you correctly point out is encoded in UTF-8 as E4BDA0 E5A5BD E59097. But now, start encoding each byte of THAT encoding in UTF-8. Start with E4. What is that codepoint in UTF-8? Try it! It’s C3 A4! You … Read more
As the comments suggest: expected behavior. You can’t switch on a variable of type float. The answer is: that would be a bad idea anyway. Keep in mind that floating point numbers are “inaccurate” by design (see here for example). Whereas switch has the notion of exactly matching n different cases. But that is simply … Read more
the issue as you can guess is that you got a memory leek because of the heap is full. You could fix it by increasing the Java heap space but the issue is probably related to your code which may not deallocate the variables properly or your recursive function does not have an “exit point” … Read more
General Format, query =select * from table_name where table_col1=”+getvalue1()+” && table_col2=”+getvalue2()+”; in order your database, query=”select * from userVO where familyno=”+udto.getFamilyno()+” && date=”+udto.getDate()+”;”; 2 solved where conditon to get date in two columns familyno and date