static void Main(String[] args) { csharp s1 = new csharp(5, 6, 8); csharp s3 = new csharp(); s3 = -s1; s3.display(); }
public static csharp operator -(csharp s1) { csharp t = new csharp(); t.x = -s1.x; t.y = -s1.y; t.z = -s1.z; return(t); }