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Java novice onboarding tips

As a Java novice, onboarding skills include understanding the company culture and values, becoming familiar with work processes and tools, learning company projects and code libraries, proactively communicating and asking for advice, developing personal learning plans, practicing more, thinking more, participating in company training and activities, and paying attention Industry dynamics and technology trends, establishing your own professional brand, etc. Through continuous learning and practice, you can quickly improve your skills and become an excellent Java developer.

Oct 24, 2023 am 10:06 AM

java新手java

Is Java difficult to learn? How long does it take to learn?

The Java programming language is easy to learn, cross-platform, safe, portable, and multi-threaded, making it a very popular programming language. To learn Java programming, you can choose different learning paths and goals based on your interests and needs. Here are some suggestions to help you learn Java programming better.

Oct 24, 2023 am 10:02 AM

java

What software should Java beginners use?

Java beginners can choose appropriate development tools and frameworks based on their own needs and preferences. Choosing the right Java development software can improve development efficiency, reduce error rates, and allow developers to focus more on application development and innovation. During the learning process, don't forget to practice more and think more, so that you can improve your Java programming level faster.

Oct 24, 2023 am 09:57 AM

java初学者java

What academic qualifications are needed to learn Java?

Learning Java programming does not require a specific academic background. Although computer science, software engineering and other related majors will provide some help, as long as you have a high school or technical secondary school degree or above and have certain logical thinking and learning abilities, you can learn Java programming. In fact, many successful Java developers do not have computer-related academic background. They have gradually mastered Java programming skills through self-study, online courses, practical projects, etc.

Oct 24, 2023 am 09:52 AM

java

Getting started with must-memorize code in java

Java is a widely used programming language with features such as cross-platform, security, portability, and multi-threading. Therefore, it is widely used in various software development fields. When learning Java programming, there are some key concepts and codes that Java beginners must master.

Oct 24, 2023 am 09:48 AM

java

How to get started with Java for beginners

As a Java beginner, the process of getting started may feel a bit challenging, but as long as you can follow the correct learning methods and steps, you can easily master the Java programming language.

Oct 24, 2023 am 09:42 AM

java初学者java

What is the expansion mechanism of hashmap?

The expansion mechanism of hashmap is to recalculate the capacity and replace the original array with a new array. Recalculate all the data of the original array and insert a new array, and then point to the new array; if the array has reached the maximum value before capacity expansion, directly set the threshold to the maximum integer and return it.

Mar 15, 2023 pm 03:39 PM

javahashmap

What is the use of java split() method?

In Java, the split() method is used to separate strings, which can be split based on matching a given regular expression. The split() method can split a string into substrings, and then return the result as a string array; syntax "stringObj.split([regex, [limit]])", the parameter regex specifies the regular expression delimiter, limit Specify the number of copies to be divided.

Mar 09, 2023 pm 02:42 PM

split()java

What does void mean in java

In Java, void means "empty", that is, "returns nothing". When the method is declared, it means that the method has no return value. void corresponds to a wrapper class "java.lang.Void". The Void class is modified with final and is a non-instantiable placeholder class used to save a reference to the Class object that represents the Java keyword void.

Mar 01, 2023 pm 07:19 PM

voidjava

What does string mean in java

In Java, string means string, a class type, which represents a sequence of characters; Java does not have a built-in string type, but provides a String class in the standard Java class library. Create and manipulate strings. The simplest way to define a string in Java is to surround it with double quotes; you can also define a string by creating an instance of the String class.

Mar 01, 2023 pm 07:11 PM

stringjava

The servlet life cycle is divided into several stages

The Servlet life cycle refers to the entire process from creation to destruction of a servlet, which can be divided into three stages: 1. Initialization stage, calling the init() method to initialize the Servlet; 2. Running stage (processing requests), the container will Request to create a ServletRequest object representing an HTTP request and a ServletResponse object representing an HTTP response, and then pass them as parameters to the service() method of the Servlet; 3. Destruction phase.

Feb 23, 2023 pm 01:46 PM

servlet生命周期java

What are the eight major data types in Java

Eight major data types: 1. byte (bit), the maximum data storage capacity is 255; 2. short (short integer), the maximum data storage capacity is 65536; 3. int (integer), the maximum data storage capacity is 2 to the 32nd power Subtract 1; 4. long (long integer), the maximum data storage capacity is 2 to the 64th power minus 1; 5. float (single-precision floating number), f or F must be added after the number when assigning directly; 6. double (Double precision); 7. boolean (Boolean type); 8. char (character).

Feb 02, 2023 am 10:17 AM

java

What are the characteristics of the spring boot framework?

The characteristics are: 1. You can create independent Spring applications, and based on its Maven or Gradle plug-in, you can create executable JARs and WARs; 2. Using embedded Servlet containers (such as Tomcat, Jetty, etc.), the application does not need to be packaged WAR package; 3. Provide starter to simplify Maven configuration; 4. Provide a large number of automatic configurations, which can automatically configure Spring containers as much as possible; 5. Comes with application monitoring; 6. No code generation and xml configuration.

Feb 01, 2023 pm 04:07 PM

javaspring boot

What is the garbage collection mechanism of jvm?

The garbage collection mechanism of jvm is GC (Garbage Collection), also called garbage collector. Basic principles of GC: Recycle objects that are no longer used in memory; the method used for recycling in GC is called the collector. Since GC needs to consume some resources and time, Java analyzes the life cycle characteristics of the object and follows the Objects are collected in the new generation and old generation to shorten the pause caused by GC to the application as much as possible.

Feb 01, 2023 pm 02:02 PM

javaJVM