Return multiple values: Difference between revisions

Java does not have tuples, so the most idiomatic approach would be to create a nested or inner-class specific to your values.

<syntaxhighlight lang="java">

Point getPoint() {

return new Point(1, 2);

}

static class Point {

int x, y;

public Point(int x, int y) {

this.x = x;

this.y = y;

}

}

</syntaxhighlight>

It is not recommended to return an ''Object'' array from a method.<br />

This will require the receiving procedure a casting operation, possibly preceded by an ''instanceof'' conditional check.<br /><br />

If you're using objects that are not known until runtime, use Java Generics.

<syntaxhighlight lang="java">

Values<String, OutputStream> getValues() {

return new Values<>("Rosetta Code", System.out);

}

static class Values<X, Y> {

X x;

Y y;

public Values(X x, Y y) {

this.x = x;

this.y = y;

}

}

</syntaxhighlight>

<br />

Or, an alternate demonstration