Jre4Android Pro - Java Runtime

Pro version:
1 No Ads
2 Support manual input of "args" parameters.
3 Add an Integrated Development Environment (IDE) to the settings page that allows you to run Java code and also supports compiling it into a JAR file for sharing with others.
4 Java version is 21

Java runtime environment for android (Jre4Android)

Run .jar file
The effect of this app is the same as the command below:
java -jar xxx.jar

This app can run .class file, the effect is same as the command below:
java Hello
Hello is the Hello.class, select from you device which you want to run

spring boot packaged into jar can also run

1.8.j21:
The Java version is supported up to 21.

1.8.7:
Enable touch clicking on the Swing UI interface; toggle this feature off/on by clicking the mouse button on the top right corner.

1.8.6:
Added functionality equivalent to keyboard directional arrows.
Click the button at the bottom left corner on the Swing UI page to switch.

1.8.0:
Add an Integrated Development Environment (IDE) to the settings page that allows you to run Java code and also supports compiling it into a JAR file for sharing with others.

1.7.3:
Command-line interactive interface adds tab, control, and fn keys.

1.7.2:
1. If a JAR file contains multiple main methods, you can switch between different main methods by manually entering the package name and class name during JAR execution. By default, the JAR reads the Main-Class entry from the MANIFEST.MF file to determine the main class to be executed.

2. If the execution of a JAR file requires dependencies from another JAR, you can add the additional JAR to the classpath setting.