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Detailed explanation of JAVA exceptions and exception handling

Detailed explanation of JAVA exceptions and exception handling

An exception is something different from the norm, something different from normal, something wrong. In Java, situations that block the current method or scope are called exceptions. This article provides you with a detailed introduction to exceptions and exception handling methods in Java.

Nov 27, 2019 pm 05:39 PM
java
What are the commonly used methods in java arrays

What are the commonly used methods in java arrays

Commonly used methods in java arrays are: 1. binarySearch method; 2. sort method; 3. copyOf and copyOFRange methods; 4. arraycopy method. This article is recommended by the Java Quick Start column. Everyone is welcome to communicate and learn together.

Nov 27, 2019 pm 05:19 PM
java Common methods array
How to implement recursive arrangement in java

How to implement recursive arrangement in java

This article is recommended by the "Zero Basic Introduction to Java" column. Everyone is welcome to learn and communicate together! If recursion in Java is understood from the perspective of data structure, it is actually a stack. The following example clearly demonstrates the recursive arrangement process.

Nov 27, 2019 pm 05:04 PM
java arrangement recursion
Analysis on == and equals in java

Analysis on == and equals in java

This article is recommended by the Java Programming Introduction column, I hope it can help everyone understand it better. When "==" is used to compare basic data types, the comparison is whether the contents are equal. When comparing reference data types, the comparison is whether the memory addresses are equal.

Nov 27, 2019 pm 04:19 PM
== equals java analyze
Detailed explanation of the usage of enum (enumeration) in java

Detailed explanation of the usage of enum (enumeration) in java

This article introduces the usage of enum in Java from the java introductory column. I hope it can help students in need. Usage of enum: Usage 1, constant; Usage 2, switch; Usage 3, add new methods to the enumeration; Usage 4, override the enumeration method.

Nov 27, 2019 pm 03:49 PM
enum java usage
Detailed explanation of java class loader ClassLoader

Detailed explanation of java class loader ClassLoader

A class loader is an object used to load classes, and ClassLoader is an abstract class. If we are given the binary name of a class, the class loader should try to locate or generate the data that makes up the defining class. A typical strategy is to convert a given binary name into a file name, and then read the class corresponding to the file name from the file system.

Nov 27, 2019 pm 03:35 PM
classloader class loader
LRU cache implementation in java

LRU cache implementation in java

LRU cache caches a certain amount of data and deletes some expired data when it exceeds a set threshold. This article introduces us to the implementation of LRU cache in Java in detail, and provides us with some help when learning the Java language.

Nov 27, 2019 pm 02:43 PM
java
How to calculate the least common multiple in java

How to calculate the least common multiple in java

This article is written by the Java Development Introduction column to introduce how to calculate the least common multiple in Java. I hope it can help you. To calculate the least common multiple, you need to know: the least common multiple of two adjacent non-zero natural numbers is their product; the least common multiple of two adjacent odd numbers is their product.

Nov 27, 2019 pm 02:39 PM
java least common multiple calculate
Detailed introduction to java generics

Detailed introduction to java generics

This article gives us a detailed introduction to generics in java. Java generics are "parameterized types", which means that the type is parameterized from the original specific type, similar to the variable parameters in the method. At this time, the type is also defined in parameter form, and then the specific type is passed in when using/calling .

Nov 27, 2019 pm 02:31 PM
java
Detailed graphic explanation of Java Web project basics

Detailed graphic explanation of Java Web project basics

Java Web is the sum of technologies that use Java technology to solve related web and Internet fields. This article introduces in detail the basic structure of the java web project and some basic knowledge in the java web project. I hope it can provide some help when you are developing java.

Nov 27, 2019 pm 02:19 PM
java
Detailed introduction to java reflection mechanism

Detailed introduction to java reflection mechanism

Java reflection is a key property of Java being considered a dynamic (or quasi-dynamic) language. The Java reflection mechanism allows programs to load, detect, and use classes that are completely unknown during compilation at runtime. This article introduces the reflection mechanism in java in detail.

Nov 27, 2019 pm 01:58 PM
java
Introduction to Java RMI (with examples)

Introduction to Java RMI (with examples)

Java RMI refers to remote method invocation, which is a mechanism that allows an object on a Java virtual machine to call methods on an object in another Java virtual machine. Any object that can be called with this method must implement the remote interface.

Nov 27, 2019 pm 01:36 PM
java
How to traverse the elements in an ArrayList collection in java and output it

How to traverse the elements in an ArrayList collection in java and output it

This article introduces the method of traversing the elements in the ArrayList collection from the java introductory program column. I hope it can help students in need. The method of traversing elements in a collection is generally through a for loop and traversing according to the size of the collection. The following program details the traversal process.

Nov 27, 2019 pm 01:31 PM
arraylist java element output Traverse
How to use if statement to determine whether strings are equal in java

How to use if statement to determine whether strings are equal in java

The way to use the "if" statement in "java" to determine whether strings are equal is: you can use the "==" or "equals" method, both of which can compare whether strings are equal, but the difference is that "==" comparison is whether the addresses of the two strings are equal, and the "equals" method compares whether the contents of the string objects are the same.

Nov 27, 2019 am 11:55 AM
if statement java judgment string

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