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Example: The following simple example program demonstrates the relational operators. Copy and paste the following Scala program in Test.scala file and compile and run this program. object Test { def main(args: Array[String]) { var a = 10; var b = 20; println("a == b = " + (a == b) ); println("a != b = " + (a != b) ); println("a > b = " + (a > b) ); println("a = a = " + (b >= a) ); println("b
} } println("a && b = " + (a&&b) ); println("a || b = " + (a||b) ); println("!(a && b) = " + !(a && b) ); This would produce the following result: C:/>scalac Test.scala C:/>scala Test a && b = false a || b = true !(a && b) = true C:/> Bitwise Operators: Bitwise operator works on bits and performs bit-by-bit operation. The truth tables for &, |, and ^ are as follows: P Q p & q p | q p ^ q 0 0 0 0 0 0 1 0 1 1 1 1 1 1 0 1 0 0 1 1 Assume if A = 60; and B = 13; now in binary format they will be as follows: A = 0011 1100 B = 0000 1101 ----------------- A&B = 0000 1100 A|B = 0011 1101 A^B = 0011 0001 ~A = 1100 0011 The Bitwise operators supported by Scala language is listed in the following table. Assume variable A holds 60 and variable B holds 13, then: Operator Description Example & Binary AND Operator copies a bit to the result if it exists in both operands. (A & B) will give 12, which is 0000 1100 | Binary OR Operator copies a bit if it exists in eather operand. (A | B) will give 61, which is 0011 1101 TUTORIALS POINT Simply Easy Learning
Page 1 and 2: Scala Tutorial
Page 3 and 4: ABOUT THE TUTORIAL Scala Tutorial S
Page 5 and 6: FLOATING POINT LITERALS ...........
Page 7 and 8: Scala Strings .....................
Page 9 and 10: CHAPTER 1 Scala Overview Scala, sho
Page 11 and 12: CHAPTER 2 Scala Environment Setup T
Page 13 and 14: $scala -version Scala code runner v
Page 15 and 16: } * This will print 'Hello World' a
Page 17 and 18: forSome If implicit import Lazy Mat
Page 19 and 20: CHAPTER 4 Scala Data Types Scala ha
Page 21 and 22: Characters must not necessarily be
Page 23 and 24: Variable Type Inference: When you a
Page 25 and 26: The access to f in class Sub is OK
Page 27: var a = 10; var b = 20; var c = 25;
Page 31 and 32: a >>> 15 C:/> Assignment Operators:
Page 33 and 34: Here, operators with the highest pr
Page 35 and 36: } If the boolean expression evaluat
Page 37 and 38: Nested if...else Statement: It is a
Page 39 and 40: while loop do...while loop for loop
Page 41 and 42: Flow Diagram: Example: object Test
Page 43 and 44: When the above code is compiled and
Page 45 and 46: } } // for loop execution with mult
Page 47 and 48: Flow Diagram: Example: import scala
Page 49 and 50: Infinite Loop: A loop becomes infin
Page 51 and 52: } } return sum A function, which do
Page 53 and 54: When the above code is compiled and
Page 55 and 56: } When the above code is compiled a
Page 57 and 58: } logWithDateBound("message1" ) log
Page 59 and 60: CHAPTER 12 Scala Strings Consider t
Page 61 and 62: } } var str2 = "Tod"; println("Dot
Page 63 and 64: 23 24 25 26 27 28 29 30 31 32 33 34
Page 65 and 66: CHAPTER 13 Scala Arrays Scala provi
Page 67 and 68: C:/> Multi-Dimensional Arrays: Ther
Page 69 and 70: C:/> Scala Arrays Methods: Followin
Page 71 and 72: Scala Lists Scala Lists are quite s
Page 73 and 74: Creating Uniform Lists: You can use
Page 75 and 76: 13 14 15 16 17 18 19 20 21 22 23 24
Page 77 and 78: var s = Set(1,3,5,7) While defining
Page 79 and 80:
C:/> Scala Set Methods: Following a
Page 81 and 82:
elements. 38 39 40 41 42 43 44 45 4
Page 83 and 84:
use two maps with ++ as method colo
Page 85 and 86:
11 12 13 14 15 16 17 18 19 20 21 22
Page 87 and 88:
val t = new Tuple3(1, "hello", Cons
Page 89 and 90:
The method will return Some[Person]
Page 91 and 92:
6 7 8 9 10 11 12 13 14 def filter(p
Page 93 and 94:
Scala Iterator Methods: Following a
Page 95 and 96:
38 39 40 41 42 43 44 45 46 47 48 49
Page 97 and 98:
CHAPTER 15 Scala Classes & Objects
Page 99 and 100:
} } println ("Point y location : "
Page 101 and 102:
CHAPTER 16 Scala Traits A trait enc
Page 103 and 104:
CHAPTER 17 Scala Pattern Matching P
Page 105 and 106:
} // case class, empty one. case cl
Page 107 and 108:
} When the above code is compiled a
Page 109 and 110:
[0-9] Match any digit; same as [012
Page 111 and 112:
CHAPTER 19 Scala Exception Handling
Page 113 and 114:
CHAPTER 20 Scala Extractors An extr
Page 115 and 116:
CHAPTER 21 Scala Files I/O Scala is
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