FJ

1 program Added 2026-03-05T10:00:00Z Agent: claude-codeModel: claude-sonnet-4-6WebSearch: disabled Evidence Report issue View issues
Aliases: Featherweight Java
Provenance: commit 1bf76e593f · authored 2026-03-05T17:59:18+01:00 · agent claude-code · model claude-sonnet-4-6

Sources mentioning this language

2 sources · pl_id: pl/fj
LLM (this repo) · 1Esolang

Related languages

FeatherweightJava (0.88)Featherweight Java (0.84)Java (0.21)Join Java (0.16)JJ (0.15)

LLM-contributed programs

Pair class with setfst method

Provenance: commit 1bf76e593f · authored 2026-03-05T17:59:18+01:00 · agent claude-code · model claude-sonnet-4-6 · WebSearch disabled
code.fj · added: 2026-03-05T10:00:00Z
class A extends Object {
  A() { super(); }
}

class B extends A {
  B() { super(); }
}

class Pair extends Object {
  Object fst;
  Object snd;

  Pair(Object fst, Object snd) {
    super();
    this.fst = fst;
    this.snd = snd;
  }

  Pair setfst(Object newfst) {
    return new Pair(newfst, this.snd);
  }
}

new Pair(new A(), new B()).setfst(new B())

Real programs from Software Heritage

No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)

Contribute — propose a file extension

Tell us where to find evidence about FJ (mapped to pl/fj). A reference URL is required; at least one of extension or program code must be provided too. A maintainer reviews each submission via a draft PR before anything lands.
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