Scala Learning 6--collection

Subscript access to List

var t = List (1,2,3,5,5) println (T (2))

Map function

println (T.map (a=> {print ("* * *" +a); a+2}));

adding elements

var t2 = t.+:("test") println (6::T2)

Foreach

T2.foreach (T=>print (t))

Go heavy

T.distinct

Accumulation

println (t./:() ({(Sum,num) =>print (sum+ "--" +num+ "); sum-num});

Reduce

println (T.reduce (_-_))

Meta-group:

var tuple01 = (1,5,6,6);p rintln (tuple01._1) println (tuple01._4)

Map

var m1 =  Map[string,int] (("A", 1), ("B", 2));p RINTLN (M1 ("a")), M1 + = ("C", 3);p RINTLN (M1) M1.foreach (a=>{pri Ntln (A + "" +a._1+ "" +a._2)}), M1.keys.foreach (B=>PRINTLN (m1 (b) = 2));p RINTLN (M1)

Scala Learning 6--collection