Explain Python Dictionary Memory Usage

Arjun Thakur
Updated on 17-Jun-2020 11:40:07

799 Views

The dictionary consists of a number of buckets. Each of these buckets containsthe hash code of the object currently stored (that is not predictable from the position of the bucket due to the collision resolution strategy used)a pointer to the key objecta pointer to the value objectThis sums up to at least 12 bytes on a 32bit machine and 24 bytes on a 64bit machine. The dictionary starts with 8 empty buckets. This is then resized by doubling the number of entries whenever its capacity is reached.

Form the Element as a Circle in Bootstrap

Alex Onsman
Updated on 17-Jun-2020 11:39:43

501 Views

To form an element as a circle, use the .rounded-circle class in Bootstrap.It is easy to implement it −Let us see an example to create a circle in Bootstrap −ExampleLive Demo       Bootstrap Example                             .test {       width: 300px;       height: 300px;       background-color: orange;     }           Circle     We have a circle below:      

Place Image at the Top Inside a Bootstrap 4 Card

Alex Onsman
Updated on 17-Jun-2020 11:38:04

148 Views

Use the card-img-top class in Bootstrap 4, to set the image at the top inside a card in Bootstrap 4 −Add the image inside the card class −Now add the card body that includes title and text −   Swift 4   Learn Swift 4   Begin The following is an example to place an image at the top inside a Bootstrap 4 card −ExampleLive Demo       Bootstrap Example                             SWIFT 4 Tutorial     Video Tutorial on Switft 4                         Swift 4         Learn Swift 4         Begin            

Static Method Definition in Java Interface

Anjana
Updated on 17-Jun-2020 11:36:55

806 Views

From Java 8 onwards, static methods are allowed in Java interfaces.An interface can also have static helper methods from Java 8 onwards. public interface vehicle {    default void print() {       System.out.println("I am a vehicle!");    }    static void blowHorn() {       System.out.println("Blowing horn!!!");    } }Default Method ExampleCreate the following Java program using any editor of your choice in, say, C:\> JAVA.Java8Tester.javaLive Demopublic class Java8Tester {    public static void main(String args[]) {       Vehicle vehicle = new Car(); vehicle.print();    } } interface Vehicle {    default void print() { ... Read More

Pass Function as Parameter in Java

Prabhas
Updated on 17-Jun-2020 11:36:16

5K+ Views

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

Add Information with Bootstrap 4 Card

Alex Onsman
Updated on 17-Jun-2020 11:35:57

162 Views

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 Warning Action with Orange Outlined Bootstrap 4 Button

Alex Onsman
Updated on 17-Jun-2020 11:34:25

250 Views

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

Return 2 Values from a Java Method

seetha
Updated on 17-Jun-2020 11:32:59

841 Views

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

Indicate Danger with Red Outlined Bootstrap 4 Button

Alex Onsman
Updated on 17-Jun-2020 11:30:58

179 Views

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

Filter an Array in Java

Ali
Ali
Updated on 17-Jun-2020 11:30:58

7K+ Views

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

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