Venturing further into the realm of Python programming, you'll undoubtedly encounter scenarios where executing a Python file from within the Python shell becomes essential. This capability endows you with the power to test, run, and interact with your Python scripts seamlessly without exiting the Python environment. Within this article, we shall discuss some distinct methods to execute Python files within the Python shell, each offering its unique functionalities and adaptability, facilitating seamless interaction with your Python scripts. As a Python coding expert, I would walk you through each method with step-by-step explanations and examples in a lucid style that is ... Read More

In Java, Arrays are of fixed size. The size of the array will be decided at the time of creation. But if you still want to create Arrays of variable length you can do that using collections like array list.Exampleimport java.util.ArrayList; import java.util.Arrays; import java.util.Scanner; public class AddingItemsDynamically {    public static void main(String args[]) {       Scanner sc = new Scanner(System.in);       System.out.println("Enter the size of the array :: ");       int size = sc.nextInt();       String myArray[] = new String[size];       System.out.println("Enter elements of the array (Strings) :: ");       for(int i=0; i

No, we can’t create generic arrays in java.

Since the size of an array is fixed you cannot add elements to it dynamically. But, if you still want to do it then, Convert the array to ArrayList object.Add the required element to the array list.Convert the Array list to array.Exampleimport java.util.ArrayList; import java.util.Arrays; import java.util.Scanner; public class AddingItemsDynamically {    public static void main(String args[]) {       Scanner sc = new Scanner(System.in);       System.out.println("Enter the size of the array :: ");       int size = sc.nextInt();       String myArray[] = new String[size];       System.out.println("Enter elements of the array ... Read More

Java provides a ByteBuffer class which allows you to wrap an array into a byte buffer using its wrap() method. Once you did that you can replace the contents of the buffer using the position(): To select the starting position and, put(): To replace the data methods:ExampleLive Demoimport java.nio.ByteBuffer; public class OverwriteChunkOfByteArray {    public static void main(String args[]) {       String str = "Hello how are you what are you doing";       byte[] byteArray = str.getBytes();       System.out.println("Contents of the byet array :: ");             for(int i = 0; i

Following are the different types of keywords in java—Access modifiers − private, protected, public.Class, method, variable modifiers− abstract, class, extends, final, implements, interface, native, new, static, strictfp, synchronized, transient, volatile.Flow control− break, case, continue, default, do, else, for, if, instanceof, return, switch, while.Package control− import, package.Primitive types− boolean, byte, char, double, float, int, long, short.Error handling− assert, catch, finally, throw, throws, try.Enumeration− enum.Others− super, this, void.Unused− const, goto.

To declare array size dynamically read the required integer value from the user using Scanner class and create an array using the given value:Exampleimport java.util.Arrays; import java.util.Scanner; public class PopulatingAnArray {    public static void main(String args[]) {       System.out.println("Enter the required size of the array :: ");       Scanner s = new Scanner(System.in);       int size = s.nextInt();       int myArray[] = new int [size];       System.out.println("Enter the elements of the array one by one ");             for(int i = 0; i

No, null is not a keyword. Though they seem like keywords null, true and, false are considered as literals in Java.

No, main is not a keyword in Java.

Yes, this and super are keywords in Java. Where ‘this’ is used as a reference of the current object and, ‘super’ is used as a reference to the superclass object.