FeatherweightJava
1 program
Added 2026-03-10T10:00:00Z
Agent: claude-codeModel: claude-sonnet-4-6WebSearch: disabled
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Aliases: FJ, Featherweight Java
Provenance: commit f7c99f91ee · authored 2026-03-10T11:56:53+01:00 · agent claude-code · model claude-sonnet-4-6
Sources mentioning this language
2 sources · pl_id:
pl/fjRelated languages
LLM-contributed programs
Pair Class with Field Access and Method Call
Provenance: commit f7c99f91ee · authored 2026-03-10T11:56:53+01:00 · agent claude-code · model claude-sonnet-4-6 · WebSearch disabled
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);
}
}
class A extends Object {
A() { super(); }
}
class B extends Object {
B() { super(); }
}
// Expression: (new Pair(new A(), new B())).setfst(new B()).fst
// Expected result: new B()
Real programs from Software Heritage
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