you can do something like this: BufferedReader reader = null; try { reader = new BufferedReader(new FileReader(“path”)); String line = null; int count = 0; while ((reader.readLine()) != null && count < 11) { count++; } if (count > 10) { reader = new BufferedReader(new FileReader(“path”)); while ((line = reader.readLine()) != null) { System.out.println(line); } … Read more
To answer your question, yes it would make a huge difference if you removed the return statement from your return children.get(i).search(x); line of code. The method signature: public Node search(int x) specifically states that it will return a node value, therefore the end result of this method must return a Node, or a null value. … Read more
In curl -F means post the form data, usually the content type is multipart/form-data. You can use the Apache HttpClient library for this purpose in Java. Here is an example of posting form using MultipartRequestEntity. Before looking into this example, I’ll suggest you to try this example to be habituated with normal http POST. 1 … Read more
You are calling a method that does not exist. It is println not prntln. I highly recommend using the built in code recommendation in your IDE or read the javadoc beforehand so you know the correct names and arguments. solved What is wrong with my code? I am a beginner and I keep getting this … Read more
One Solution can be from what i understood you problem is you want both of you should work on same App and even can do your work individual and test it. Solution can be: Suppose you have Login Activity & he has DataViewpage activity. Both work on same project just Add this in the manifest … Read more
The main difference between the two statements in terms of Instantiating is that in first one, you are instantiating a FragmentABC object, that extends the Fragment class. This means your FragmentABC object is a subClass of Fragment. In the second one you are instantiating an Intent, that is a normal class being instantiated. To know … Read more
Here’s a method that will reformat the data This is assuming your data is {[“Yes”, “121”, “1”], …} You may need some minor adjustments if your data is formatted as {[“Vote”, “User”, “Poll”], [“Yes”, “121”, “1”], …} This function works by first figuring out the User and Poll sets Once it knows how many total … Read more
you are trying to store the scanner input into the array. you should specify a separate variable. Arrays are zero-indexed, so when getting a value from array use ArrayName[someNumber] where someNumber refers to the element in the array. the first element starts at 0. int i = input.nextInt(); System.out.println(ColourOne[i]); solved Java array what should i … Read more
Try this.. String s1 = “2013-01-15 8:00:03”; SimpleDateFormat sdf=new SimpleDateFormat(“yyyy-MM-dd h:mm:ss”); try { Date dt=sdf.parse(s1);//converting to date SimpleDateFormat sdf1=new SimpleDateFormat(“dd-MMM-yyyy h:mm:ss”); String s2=sdf1.format(dt);//formating to new format string System.out.println(s2); } catch (ParseException ex) { } //new answer public class Dd { public static void main(String args[]) throws ParseException { String s1 = “2014-01-15 00:003:00”; SimpleDateFormat sdf … Read more
The code works by first creating an array of points along with an array of normals and then referencing them later to create the figure. The four calls to setCoordinate() sets the position of the each vertex. The int[] coords store the positions of the vertices for the 4 triangles that make up the 4 … Read more
Besides the Map option, you can consider using some sort of Key value pair and, storing that in your array and sort your array based on the values. See this for potential key value pairs, or make your own. An example: package com.example; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; public class KeyValue { … Read more
Does this meet your question? public static void main(String[] args) { Student[] studentarr = new Student[5]; for(double i = 0; i < 5; i++); { studentarr[i] = new Student(params…); } studentarr[0].someStudentMethod(); } solved (JAVA) I need help creating a class with getters and setters, creating a class with an array and then calling upon the … Read more
Random aRandom = new Random(); for (int i = 0; i < 40; i++){ System.out.println(aRandom.nextInt(10) + 1); } 1 solved How to get 40 random numbers ranging from 1-10 in java? [closed]
I suspect you want to add a break; at the end of your case blocks. Otherwise the code just runs from top to bottom (like anywhere else in your code) If you place a break; it will jump outside the switch block which appears to be what you want. e.g. case AROHA_INCREASING: { if (swaraPool.indexOf(endStr) … Read more
What algorithms are used? Java uses TLAB (Thread Local Allocation Buffers) for “normal” sized objects. This means each thread grab some Eden space and turns this grab of memory into individual objects. Thus small objects are typically sequential in memory for that thread, except if a new chunk of memory needs to be grabbed. Large … Read more