first index of java code example

Example 1: java list get first element

list.get(0);

Example 2: java list get first element

set.iterator().next();

Example 3: find first occurrence of character in string

// applies to C#
string S = "Any String At All"
int Sindex = S.indexOf("A") // accepts string or char arguments. 

// "Sindex" would be equal to "0", as the indexOf(); meathod returns
// the index position of the first occurance of the specified argument.