JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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What is build.gradle file?


You run a Gradle build using the gradle command. The gradle command looks for a file called build.gradle in the current directory. You can call this build.gradle file a build script, although strictly speaking it is a build configuration script. The build script defines a project and its tasks.

To try this out, create the following build script named build.gradle.

task hello {
        doLast {
                println 'Hello Java2Novice...'
        }
}

Move to the folder where build.gradle file placed and run command "gradle hello"

java2novice$ gradle hello
:hello
Hello Java2Novice...

BUILD SUCCESSFUL

Total time: 3.348 secs

This build script defines a single task, called hello, and adds an action to it. When you run gradle hello, Gradle executes the hello task, which in turn executes the action you've provided.

Reference: Gradle Documentation

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Gradle configuration examples

  1. Gradle Installation Steps
  2. What is gradle project and task
  3. What is build.gradle file?
  4. How to avoid gradle log messages?
  5. How to define default tasks in Gradle?
  6. How to list all gradle tasks?
  7. How to list gradle project properties?
  8. How to declare a task that depends on other task?
  9. How to create dynamic tasks in Gradle?
  10. How to exclude a task in gradle?
  11. How to create java project in gradle?
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When to use LinkedList or ArrayList?
Accessing elements are faster with ArrayList, because it is index based. But accessing is difficult with LinkedList. It is slow access. This is to access any element, you need to navigate through the elements one by one. But insertion and deletion is much faster with LinkedList, because if you know the node, just change the pointers before or after nodes. Insertion and deletion is slow with ArrayList, this is because, during these operations ArrayList need to adjust the indexes according to deletion or insetion if you are performing on middle indexes. Means, an ArrayList having 10 elements, if you are inserting at index 5, then you need to shift the indexes above 5 to one more.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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