Best way to run java on Android | Using Termux

Termux is an Android terminal emulator.

Answer of the question “ How to run java program in Android device ? “ is here.

To run java in android using Termux requires the installation of two termux packages.

• ecj : — (Eclipse compiler for java) this compile your java program and create .class file.
• dx : — it take .class file and redevelop .dex.

Java using Termux

Before we Learn How to run java on android, lets take a look at Some Important Termux command we must remember:

- To clear all screen content run the command.

$ clear

- To find current working directory.

$ pwd

- To change our current working directory to another directory. Here I’m moving in /java directory/folder.

$ cd /java

• If you want one directory/folder to move

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$ cd..

- If you want to back two directories use.

$ cd ../../

- To Create New File: To Create New Directory/Folder use mkdir commad Stands for make a new directory.

$ mkdir <new-directoy-name>

- To Delete Directory/Folder in Termux

$ rmdir <directory-name>

- To delete File

$ rm <file-name>

Here is How You Can Write and Run Java Programs on Your Android Devices

Step 1: Install Termux from Google Play

Step 2: Now Update and Upgrade Termux

- Open Termux

- To Update Termux type command

$ apt update

- To Upgrade Termux type command

$ apt upgrade

Step 3: To install ecj and dx run the following commands

$ apt install ecj

$ apt install dx

Step 4: To Create java file with .java extension.

- Type command

$ nano hello.java

- This will create hello.java file and open in nano text editor.

- Now write simple java program in nano text editor as given below

public class hello

{

public static void main(String args[])

{

System.out.println(“ Welcome to Java Learning Word With computer bits daily”);

}

}

- Note down that file_name and class name must be same to avoid error and confusion.

- Ctrl + s to save file and Ctrl + x to close nano text editor

Step 5: $ ecj hello.java

Step 6: $ dx — dex — output=hello.dex hello.class

Step 7: $ dalvikvm -cp hello.dex hello

For more reading : Best way to run java on Android | Using Termux (computerbitsdaily.blogspot.com)

Now you’re ready to Run Java program On Termux . Happy Coding | Keep Learning | |Keep Sharing | Stay Safe!