In Infix Notation ; the Operator is placed b/w 2 Operands #122
scala> //Example 1
scala> val sum = 1.+(2)
sum: Int = 3
scala> val sum = 1 + 2
sum: Int = 3
scala>
scala> //Example 2
scala> val str = "English & math & Science"
str: String = English & math & Science
scala> val indx = str.indexOf('&')
indx: Int = 8
scala> val indx = str indexOf '&'
indx: Int = 8
scala>
scala> //Example 3
scala> val str = "English & math & Science"
str: String = English & math & Science
scala> val indx = str.indexOf('&', 9)
indx: Int = 15
scala> val indx = str indexOf ('&', 9)
indx: Int = 15