using<\/span> System<\/span>;<\/span><\/div>using<\/span> System.Collections.Generic<\/span>;<\/span><\/div> <\/div>
namespace<\/span> Demo<\/span> {<\/span><\/div> public<\/span> class<\/span> Calculator<\/span> {<\/span><\/div> private<\/span> List<\/span><<\/span>int<\/span>><\/span>args<\/span> =<\/span> new<\/span> List<\/span><<\/span>int<\/span>>();<\/span><\/div> <\/div>
public<\/span> void<\/span> Push<\/span>(<\/span>int<\/span> n<\/span>)<\/span> {<\/span><\/div> args<\/span>.<\/span>Add<\/span>(<\/span>n<\/span>);<\/span><\/div> }<\/span><\/div> <\/div>
public<\/span> int<\/span> Add<\/span>()<\/span> {<\/span><\/div> int<\/span> result<\/span> =<\/span> 0<\/span>;<\/span><\/div> foreach<\/span>(<\/span>int<\/span> n<\/span> in<\/span> args<\/span>)<\/span> {<\/span><\/div> result<\/span> +=<\/span> n<\/span>;<\/span><\/div> }<\/span><\/div> return<\/span> result<\/span>;<\/span><\/div> }<\/span><\/div> }<\/span><\/div>}<\/span><\/div><\/pre><\/div>\n \n <\/div>\n\n