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Java 2022-03-02 23:20:19
identifier in java
Identifiers are names in java program. Identifiers can be class name, method name or variable name. Rules for defining identifiers in java: 1) Identifiers must start with letter, Underscore or dollar($) sign. 2) Identifiers can’t start with numb... Add solution -
Java 2022-02-26 11:00:16
writing to a text file java
import java.io.FileWriter; // Import the FileWriter class import java.io.IOException; // Import the IOException class to handle errors public class WriteToFile { public static void main(String[] args) { try { FileWriter myWriter = new File... Add solution -
Java 2022-02-23 00:10:11
Create dynamic 2d array in java
// Create dynamic 2d array in java import java.util.ArrayList; import java.util.List; public class Dynamic2dArray { public static void main(String[] args) { List<int[]> li = new ArrayList<>(); li.add(new int[]{2,4,6}); ... Add solution -
VBA 2022-02-20 21:10:39
how do you get data from excel
How do you do test using excel files in Java? I use Apache POI libraries to read and write from excel file, I add the Apache POI dependencies to my pom file. In order to connect I use following classes. -FileInputStream from Java. it is used to create ... Add solution -
Java 2022-02-20 07:35:23
encapsulation in java
Encapsulation in Java is a mechanism to wrap up variables and methods together as a single unit. It is the process of hiding information details and protecting data and behavior of the object. It is one of the four important OOP concepts. The encapsulat... Add solution