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Articles by karthikeya Boyini
Page 2 of 143
What are label statements in JavaScript?
JavaScript label statements are used to prefix a label to an identifier. A label can be used with break and continue statement to control the flow more precisely. A label is simply an identifier followed by a colon (:) that is applied to a statement or a block of code. We will see two different examples to understand how to use labels with break and continue.ExampleYou can try to run the following code to use labels to control the flow, with break statement document.write("Entering the loop! "); ...
Read MoreHow to perform sort using Java?
You can sort an array using sort() method of the Arrays class.Exampleimport java.util.Arrays; public class MainClass { public static void main(String args[]) throws Exception { int array[] = { 2, 5, -2, 6, -3, 8, 0, -7, -9, 4 }; Arrays.sort(array); printArray("Sorted array", array); int index = Arrays.binarySearch(array, 1); System.out.println("Didn't find 1 @ " + index); int newIndex = -index - 1; array = insertElement(array, 1, newIndex); printArray("With 1 added", array); } ...
Read MoreHow to Convert a Java 8 Stream to an Array?
To convert a stream to an Array in Java -Collect the stream to a list using the Collect interface and the Collectors class.Now convert the list to an array using the toArray() method.Exampleimport java.util.Arrays; import java.util.List; import java.util.stream.Collectors; import java.util.stream.Stream; public class J8StreamToArray { public static void main(String args[]) { String[] myArray = { "JavaFX", "OpenCV", "WebGL", "HBase" }; Stream stream = Stream.of(myArray); List list = stream.collect(Collectors.toList()); String[] str = list.toArray(new String[0]); System.out.println(Arrays.toString(str)); } }Output[JavaFX, OpenCV, WebGL, HBase]
Read MoreHTML DOM Input Button name Property
The HTML DOM name property returns and alter the value of name attribute of an input button in HTML.SyntaxFollowing is the syntax −1. Returning nameobject.name2. Modifying nameobject.name=”text”Here, “text” represents the new name of the input button.ExampleLet us see an example of name property − HTML DOM name Property body{ text-align:center; } .btn{ display:block; margin:1rem auto; background-color:#db133a; color:#fff; border:1px solid #db133a; padding:0.5rem; border-radius:50px; width:80%; } .show-name{ ...
Read MoreGet file extension name in Java
The file extension is the suffix that is attached to the computer file and it denotes the format of the file. A program that demonstrates getting the file extension name is given as follows −Exampleimport java.io.File; public class Demo { private static String fileExtension(File file) { String name = file.getName(); if(name.lastIndexOf(".") != -1 && name.lastIndexOf(".") != 0) return name.substring(name.lastIndexOf(".") + 1); else return ""; } public static void main(String[] args) { File file = new File("demo1.txt"); ...
Read MoreHTML DOM Input Checkbox defaultChecked Property
The HTML DOM input checkbox defaultChecked property returns the default value of checked attribute of a checkbox in HTML.SyntaxFollowing is the syntax −object.defaultCheckedExampleLet us see an example of defaultChecked property − HTML DOM checked property body{ text-align:center; } p{ font-size:1.5rem; color:#ff8741; } input{ width:30px; height:30px; } button{ background-color:#db133a; color:#fff; padding:8px; border:none; width:180px; margin:0.5rem; border-radius:50px; ...
Read MoreHTML DOM Input Checkbox autofocus Property
The HTML DOM Input Checkbox autofocus property returns and modify the value of autofocus attribute of an input HTML element with type=”checkbox”.SyntaxFollowing is the syntax −1. Returning autofocusobject.autofocus2. Modifying autofocusobject.autofocus = true|falseExampleLet us see an example of autofocus property −
Read MoreByteBuffer asDoubleBuffer() method in Java
A view of the ByteBuffer can be created as a DoubleBuffer using the asDoubleBuffer() method in the class java.nio.ByteBuffer. This method requires no parameters and it returns a double buffer as required. This buffer reflects the changes made to the original buffer and vice versa.A program that demonstrates this is given as follows −Exampleimport java.nio.*; import java.util.*; public class Demo { public static void main(String[] args) { int n = 50; try { ByteBuffer bufferB = ByteBuffer.allocate(n); DoubleBuffer bufferD = bufferB.asDoubleBuffer(); ...
Read MoreByteBuffer asCharBuffer() method in Java
A view of the ByteBuffer can be created as a CharBuffer using the asCharBuffer() method in the class java.nio.ByteBuffer. This method requires no parameters and it returns a char buffer as required. This buffer reflects the changes made to the original buffer and vice versa.A program that demonstrates this is given as follows −Exampleimport java.nio.*; import java.util.*; public class Demo { public static void main(String[] args) { int n = 50; try { ByteBuffer bufferB = ByteBuffer.allocate(n); ...
Read MoreSet Date value in Java HashMap?
Create a Calendar instance and Date object −Calendar cal = Calendar.getInstance(); Date date = new Date(); cal.setTime(date);Now, create a HashMap and store Date value −LinkedHashMaphashMap = new LinkedHashMap(); hashMap.put("year", cal.get(Calendar.YEAR)); hashMap.put("month", cal.get(Calendar.MONTH)); hashMap.put("day", cal.get(Calendar.DAY_OF_MONTH));Exampleimport java.util.Calendar; import java.util.Date; import java.util.LinkedHashMap; public class Demo { public static void main(String[] argv) { Calendar cal = Calendar.getInstance(); Date date = new Date(); System.out.println("Date = "+date); cal.setTime(date); LinkedHashMaphashMap = new LinkedHashMap(); hashMap.put("year", cal.get(Calendar.YEAR)); hashMap.put("month", cal.get(Calendar.MONTH)); hashMap.put("day", cal.get(Calendar.DAY_OF_MONTH)); ...
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