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Problem

Given a binary tree, find out if it is a binary search tree or not.

Approach 1ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Essential Module-wise Exercises for Beginning Java Notes

This page contains a set of basic exercises that you need to complete along with your beginning Java notes. Exercises are divided into modules similar to the modules for multiple choice questions. Practice these alongside reading notes and answering the multiple choice questions.

 

JAVA BASICS

  1. Write a HelloWorld program. Write a simple program with a main method that prints Hello World.

Important Questions and Observations in Spring Framework 4 Essentials

  1. If you invoke getBean("writer") and there are two beans defined with the name writer in your xml configuration file or Java configuration file. What will happen?
    • It will return the second one defined.

Autowiring in Spring

Through the autowiring feature, spring will intelligently guess some of the bean injection without needing to configure explicitly. Spring can do autowiring based on the type of the bean, name of the bean, and constructor of the bean. Default is autowire by type.

[Example] A Simple Spring Boot Application

A Spring Boot standalone application uses the @SpringBootApplication annotation over the main class, which also has the main method to execute the application. The SpringApplication.run method call accepts two parameters — the class that actually contains the annotated @SpringBootApplication annotation and any application arguments. The ApplicationArguments interface allows you to access any application arguments.

 

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