init

Explicit constructor keyword — replaces the Java class-name constructor.

Use init for custom constructor logic when compact class headers are not enough. The compiler lowers init blocks to standard Java constructors.

Affogato

class User {
    let name: String!
    var count: int

    init(name: String!, count: int) {
        this.name = name
        this.count = count
    }
}

Generated Java

class User {
    public final String name;
    public int count;

    public User(String name, int count) {
        this.name = name;
        this.count = count;
    }
}

Related

• let — Immutable binding — equivalent to Java final.
• var — Mutable binding for locals and fields.
• Named arguments — Call-site argument labels: name = value.

See also

• Classes

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