Java (Android) equivalent for PHP $$x

Question

In PHP

$variable_name = "LOREM_IPSUM";
$x = "variable_name";


echo $x;     // Print "variable_name"
echo $$x;    // Print "LOREM_IPSUM"

Java equivalent to get a variable named like the string contained in another variable.

For example to avoid:

 case 0:
     rb0.setEnabled(true);
     break;
 case 1:
     rb1.setEnabled(true);
     break;
 case 2:
     rb2.setEnabled(true);
     break;
...

It's not possible with java stackoverflow.com/a/6729645/6521116 — LF-DevJourney
– LF-DevJourney, Commented May 11, 2017 at 9:20

Timo · Accepted Answer · 2017-05-11 09:16:24Z

0

You can use an Map for instance, where the key is the id and the value the radiobutton then you just have to get on the map to get the radiobutton. Don't forget java is more verbose than PHP. If you need to access the variable by its name you can use reflection https://docs.oracle.com/javase/tutorial/reflect/

answered May 11, 2017 at 9:16

Timo

52311 silver badges22 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Denny · Accepted Answer · 2017-05-11 09:30:03Z

0

Sounds like you want to use something like eval() in javascript.

I haven't tested it so I don't even know if this will work but maybe you can try something like the ScriptEngine class and evaluate it as a Javascript string.

ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("js");
String result = engine.eval(x);

Look here on how to import it in Android

edited May 11, 2017 at 9:30

answered May 11, 2017 at 9:25

Denny

1,7833 gold badges17 silver badges37 bronze badges

Collectives™ on Stack Overflow

Java (Android) equivalent for PHP $$x

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related