Introduction to Best Java Compilers

A compiler in Java is one that compiles or executes Java code inside the Java platform. Java class file is the most common type of Java compiler and there are machines that emit native code for that particular hardware or operating system. The hardware or operating system plays a crucial role in a compilation. Different operating systems have different standards that are used in compiling different codes on different platforms. A standard on how Java compilers were specified was given in JSR 199. The Java virtual machine (JVM) is used for loading the class file and either converts to byte code or just in time code using the compilation techniques inside the Java programming language. There are compilers like BlueJ and the basic functionality of a compiler is to convert user code into machine code and then execute it which has various functions and programming sense.

Working

Today there are a number of Java compilers being used in the programming industry. There are a lot of online IDEs or interfaces where Java code can be run very smoothly to execute numerous amount of code. Some of them offer significant advantages over desktop options. Some of the points of these are given below:

• Easy to set up – There are no downloads and no installation procedure.
• Quickstart – Eclipse take one minute to open otherwise
• Easy sharing – Sharing between teachers and students, that is their assignments.

Compilers of Java

In this article, we are going to see some of the compilers in Java used to run code. They are as follows:

1. Codiva

• Codiva.io is the best compiler for Java being used extensively in coding and programming in Java language interface.
• The best advantage of Codiva is that it compiles the code instantly as the user types it, processes the compilation errors and shows it in the editor. After finishing the typing, we see the end results of the compilation which is shown in the editor of the respective compiler.
• There is also a good provision for completion automatically. These are the two features that save a lot of time while processing a simple or complex piece of code in the compiler.
• Codiva has a feature that enables more than one files and packages. It can also have file names whose names can be given customized.
• Codiva also works very smoothly on mobile platforms. Some of the disadvantages of Codiva are it supports only Java, C or C++. Codiva supports Java 9 but doesn’t support Java 9 modules and none of the other online compilers supports Java modules either. So, it is quite natural that it does not support Java 9 modules.

2. Jdoodle

• JDoodle is an extensively used online compiler for running Java code extensively on Java platform. It supports almost 70 languages. JDoodle allows only a single file but you don’t have to specify any filename. These are found by searching the file names.
• It has excellent terminal support for running programs that interact one to one with the live code. The programs are run with 10 seconds timing.
• Android Studio uses Java to build android programs and Jdoodle is one of the very few compilers used there.
• It would be a great choice if one knows a lot of languages and knows how to switch between languages.
• There are disadvantages to JDoodle. One of the disadvantages is that the code is compiled after it has been written or drafted. The user has to then find the error message, go to the line in which the error has occurred and made necessary changes. People who have used Codiva before would find it very difficult to handle JDoodle in the first place. Secondly, the disadvantage of JDoodle is that it just supports one file. The system of encapsulation, packages cannot be taught. JDoodle has many disadvantages. Despite the drawbacks, JDoodle is popular because of its numerous usage.

3. Rextester

• Rextester started as a Regular Expression Tester. It grew up to be an online interface later. It’s very popular among C# users and it can be used for more than 30 programming languages including Java.
• In Rextester, there is variation between multiple editor widgets.
• It has one of the best live collaboration support that has been used in the Java programming language. The URL can be shared and typing can be started very easily.  No glitch has been seen until now and multiple users can edit at the same time.
• Netbeans is also a platform where Rextester is being used extensively.
• It supports only a single file and the class name of the file should be Rextester to get supported. Also, the class should NOT be made public.

Example of a Code Running in Blue J Platform

In this piece of code, we are going to see a hotel app in Java code. The code is given below as well as the output.

Sample Code

import java.util.Scanner;
public class HotelMenu {
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
System.out.println("Welcome to BhartiyaTasteBuds.com");
System.out.println();
//Creating Menu
while(true){
System.out.println("To order South Indian Dish, Enter 1");
System.out.println("To order North Indian Dish, Enter 2");
System.out.println("To order Rajasthani Dish, Enter 3");
System.out.println("To order Gujrati Dish, Enter 4");
System.out.println("To order Bengali Dish, Enter 5");
System.out.println("To order Desserts, Enter 6");
System.out.println("To Exit, Enter 9");
System.out.println();
System.out.println("Enter your choice::");
int choice = scan.nextInt();
switch(choice){
case 1: System.out.println("Welcome to South Indian Food Court");
southIndianFood();
break;
case 2: System.out.println("Welcome to North Indian Food Court");
northIndianFood();
break;
case 3: System.out.println("Welcome to Rajasthani Food Court");
rajasthaniFood();
break;
case 4: System.out.println("Welcome to Gujrati Food Court");
gujratiFood();
break;
case 5: System.out.println("Welcome to Bengali Food Court");
bengaliFood();
break;
case 6: System.out.println("Welcome to Desserts Food Court");
desserts();
break;
case 9: System.out.println("Thanks for ordering from our App. Visit again");
System.exit(0);
break;
default: System.out.println("Incorrect input!!! Please re-enter choice from our menu");
}
}
}
public static void southIndianFood(){
System.out.println("You get:");
System.out.println("Idli : 2 Pieces:");
System.out.println("Butter Cheese Dosa : 1 Pieces:");
System.out.println("Vada : 2 Pieces:");
}
public static void northIndianFood(){
System.out.println("You get:");
System.out.println("Chole Bhature : 2 Pieces:");
System.out.println("Litti Chokha : 4 Pieces:");
}
public static void rajasthaniFood(){
System.out.println("You get:");
System.out.println("Dal Baati Churma");
System.out.println("Laal maas");
System.out.println("Methi Bajra puri");
}
public static void gujratiFood(){
System.out.println("You get:");
System.out.println("Dhokla : 2 pieces");
System.out.println("Khandvi");
System.out.println("Methi ka Thepla");
}
public static void bengaliFood(){
System.out.println("You get:");
System.out.println("Maach Bhaat");
System.out.println("Aalu Luchi");
}
public static void desserts(){
System. out. println(" You get: ");
System. out. println("Rasmalai");
System. out. println("Rasgulla : 2 Pieces");
System.out.println("Emarti : 2 Pieces");
System.out.println("Gajar ka halwa");
}
}

Output:

Conclusion – Best Java Compilers

There are numerous compilers in Java bust some of the best compilers in Java are shown in this article. In desktop programming, Java uses BlueJ or Eclipse platform for executing Java code. The compilation time and efficiency depend upon the hardware or the configuration of the operating system that we are using.

Recommended Articles

This is a guide to Best Java Compilers. Here we discuss different best compilers of java in detail with sample code You can also go through our other suggested articles –

1. Frameworks In Java
2. What is Synchronization in Java?
3. Destructor in Java
4. Java Collection Interview Questions

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