Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Yes. From Java 8 onwards, we can do so using method references.Method references help to point to methods by their names. A method reference is described using "::" symbol. A method reference can be used to point the following types of methods −Static methodsInstance methodsConstructors using new operator (TreeSet::new)Method Reference ExampleCreate the following Java program using any editor of your choice in, say, C:\> JAVA.Java8Tester.java Live Demo import java.util.List; import java.util.ArrayList; public class Java8Tester { public static void main(String args[]) { List names = new ArrayList(); names.add("Mahesh"); names.add("Suresh"); names.add("Ramesh"); ... Read More
To add information to a card in Bootstrap 4, use the bg-info class.Use the card class with the bg-info class:Add the card body after that using the card-body class − Demo Text You can try to run the following code to add information −ExampleLive Demo Bootstrap Example Festival Celebration Reach till 5PM
Set orange outline for a Bootstrap 4 button, using the btn-outline-warning class and indicate warning action.The following includes the orange outline on a button − Rejected The class is added just as any other class added to any element in Bootstrap. For a Bootstrap button, I used the element.You can try to run the following code to implement the btn-outline-warning class −ExampleLive Demo Bootstrap Example College Placements Selected Students Rejected Students Result Awaited List of selected and rejected students: Selected Rejected
A method can give multiple values if we pass an object to the method and then modifies its values. See the example below −Examplepublic class Tester { public static void main(String[] args) { Model model = new Model(); model.data1 = 1; model.data2 = 2; System.out.println(model.data1 + ", " + model.data2); changeValues(model); System.out.println(model.data1 + ", " + model.data2); } public static void changeValues(Model model) { model.data1 = 100; model.data2 = 200; } } class Model { int data1; int data2; }Output1, 2 100, 200
Use the btn-outline-danger class in Bootsrap 4 to indicate danger with red outlined button.The following is an example to set a button that indicates danger with red outline − Danger The class is added using the btn and btn-outline-danger class in Bootstrap −class="btn btn-outline-danger”Let us see an example to implement the btn-outline-danger class −ExampleLive Demo Bootstrap Example Animals Animals are in danger. To know what, you need to click below: Danger
You can use List.removeAll() method to filter an array. exampleimport java.util.ArrayList; import java.util.List; public class Tester { public static void main(String[] args) { List list = new ArrayList(); list.add("A"); list.add("B"); list.add("C"); list.add("D"); list.add("E"); list.add("F"); list.add("G"); list.add("H"); List filters = new ArrayList(); filters.add("D"); filters.add("E"); filters.add("F"); System.out.println("Original List " + list); list.removeAll(filters); System.out.println("Filtered List ... Read More
You can parse JSON files using the json module in Python. This module parses the json and puts it in a dict. You can then get the values from this like a normal dict. For example, if you have a json with the following content{ "id": "file", "value": "File", "popup": { "menuitem": [ {"value": "New", "onclick": "CreateNewDoc()"}, {"value": "Open", "onclick": "OpenDoc()"}, {"value": "Close", "onclick": "CloseDoc()"} ] } }You can load it in your python program and loop over ... Read More
Use the float-none class in Bootstrap to remove float from an element.The default for a text is always left; therefore removing float will place the text on the left −You can try to run the following code to remove float from an element −ExampleLive Demo Bootstrap Example Demo This text is on the left (on small screen). This text is on the left (on medium screen). This text is on the left (float removed). This text is on the left (on extra large screen). This text is on the left (float removed).
To stretch a flex item on different screens in Bootstrap 4, use the .align-self-*-stretch class.To strect in on different screens, you need to use align-self-sm-stretch, align-self-md-stretch, align-self-lg-stretch, etc. Below is an example for small screen size − A-one B-one C-one D-one You can try to run the following code to stretch a flex item on different screen sizes −ExampleLive Demo Bootstrap Example Align Specific Flex Item and Stretch A-one B-one C-one D-one Small Screen Size A-one B-one C-one D-one Medium Screen Size A-one B-one C-one D-one Large Screen Size A-one B-one C-one D-one
If you have the exact key you want to find, then you can simply use the [] operator or get the function to get the value associated with this key. For example,Examplea = { 'foo': 45, 'bar': 22 } print(a['foo']) print(a.get('foo'))OutputThis will give the output:45 45ExampleIf you have a substring that you want to search in the dict, you can use substring search on the keys list and if you find it, use the value. For example,a = { 'foo': 45, 'bar': 22 } for key in a.keys(): if key.find('oo') > -1: print(a[key])OutputThis will give the output45