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Tag Archives: java
java tutorial: java enum in switch case
Java enum in switch case : 1. Returns the enum constant of the specified enum type with the specified name. 2. The case label is an enum constant. Continue reading
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java tutorial: Java enum check if value exists
Java enum check if value exists: 1. Enum class provides inspection methods 2. Check with for loop 3.Use stream iterators 4.Use a tool class similar to Apache EnumUtils Continue reading
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java tutorial: Java Generic
Java generics, in a nutshell, generics enable types (classes and interfaces) to be parameters when defining classes, interfaces and methods. Continue reading
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java tutorial: 5 ways to create stream in java 8
A java stream is a sequence of objects, which can be arranged, filtered, and transformed through a pipeline to produce the desired result. Continue reading
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java tutorial: Java exception
A java exception is an event that occurs during the execution of a java program that disrupts the normal flow of instructions. Continue reading
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java tutorial: java 8 Lambda built-in functional interfaces
Java 8 functional interface: Function
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IntelliJ IDEA utility plugin
IntelliJ IDEA is an excellent Java IDE, with the help of excellent IDEA plugins, we can greatly improve efficiency in daily development. Continue reading
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java tutorial: three ways to generate random numbers in Java
Java random number have three ways: java.lang.Math.Random, java.util.Random, java.util.concurrent.ThreadLocalRandom Continue reading
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java tutorial: java 8 lambda expression example
Lambda expressions are a simplification of anonymous inner classes, a functional programming idea that makes code look cleaner. Continue reading
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java tutorial: install Java JDK and Maven on Mac
Install Java JDK and Maven on mac os: 1) Download and install files from the official website; 2) Install using homebrew package manager. Continue reading
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Basic design structure of java
Java is case sensitive; The main method must be declared public, and each application has one and only one main method; General syntax used by java: object.method(parameters) Java programs comments Single-Line Comment: // Multiline Comment: /* */ Java data type … Continue reading