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   😂               Login with Mobile Number OTP ---------------------------------------------------------------------------- If you want to develop a project to log in with OTP mobile Number in Spring Boot Applications then this post for you. In this post, I am going to use some other service to send the OTP in mobile number. we have to use it in this project spring boot. we are going to use Twilio to send SMS. we are going to use a web socket to send the data from the browser to the SMS gateway. Oracle Database for store the user details. <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> <version>2.3.3.RELEASE</version> </dependency> <dependency> <groupId>com.twilio.sdk</grou

              😂How to Send Email with Spring Boot API In this post, we are going to implement a project like send an email to the given email Id with Spring Boot we can do this. In this project, users have to send emails and we have to send the email for forgetting the password. Send Email with Spring Boot API 1.pom.xml   Add this despondency . <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframew

 😂 How to Generate Documentation for Spring Boot API project Make sure your Project having a swagger or open API 3 Dependency then only you get proper Documentation for your Service. ---------------------------------------------------------------------------- Every method or API above you have to Write Like that then only you get proper Documentation If you do everything in your Application and Run your Application and go to browse and search. . http://localhost:8080/v3/api-docs/ if you want to learn more go with this one.  Open API-3   1. For Return List of Object then you have to use this API operation  @Operation(summary = "This will fetch List of Patient Detailas base on Hospital Name") @ApiResponses(value = { @ApiResponse(responseCode = "200", description = "Successfully fetch All Patient Details from Database ", content = {  @Content(mediaType = "application/json" ,array = @ArraySchema(schema =@Schema(implementation =PatientDe

😂  Arrays Important Question   😂 All the Questions is very important for Interviews and Written Test. 1) Java Program to copy all elements of one array into another array 2) Java Program to find the frequency of each element in the array 3) Java Program to left rotate the elements of an array 4) Java Program to print the duplicate elements of an array 5) Java Program to print the elements of an array 6) Java Program to print the elements of an array in reverse order 7) Java Program to print the elements of an array present on even position 8) Java Program to print the elements of an array present on odd position 9) Java Program to print the largest element in an array 10) Java Program to print the smallest element in an array 11) Java Program to print the number of elements present in an array 12) Java Program to print the sum of all the items of the array 13) Java Program to right rotate the elements of an array 14) Java Program to sort the elements of an array in ascending order 15