Java’s Double Brace Initialization does the same work what a single brace can achieve in C#.
Double Brace creates and initialize objects in a single Java expression.
Let’s say the following is in Java −
Example
List<String> list = new List<String>() {{
add("One");
add("Two");
add("Three");
add("Four");
}}The same you can use for Collection Initializer in C# as −
List<String> list = new List<String>() {"One","Two", “Three”, “Four”};