Zig structs vs Java classes

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2

Take care not to confuse what you’re calling “members” here and struct fields though, which can just as well be declared at the top level and are always public:

//! A top-level module.

var inner: u32 = 0;
pub const foo: i32 = 123; // Yes, this needs `pub`...

// But this is a field, and all fields are public.
// Mind the comma.
number: u32,

pub fn init() @This() {
    const x: @This() = .{ .number = inner };
    inner += 1;
    return x;
}

// main.zig

const std = @import("std");
const Mod = @import("Module.zig");

pub fn main() void {
    const m = Mod.init();
    std.debug.print("m.number = {}\n", .{m.number});

    std.debug.print("next is {}\n", .{Mod.init().number});
    std.debug.print("next is {}\n", .{Mod.init().number});
    std.debug.print("next is {}\n", .{Mod.init().number});
    std.debug.print("next is {}\n", .{Mod.init().number});
}

$ zig run main.zig
m.number = 0
next is 1
next is 2
next is 3
next is 4
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