How to add multiple if clause in Scala For Loop

Question

Please let me know how can I add two if clause in a for loop with or option. for (name <- names **(if name.startsWith("S") || if name.endsWith("B".toLowerCase()) ) ) println(name)**

object ScalaList {
    def main(args: Array[String]): Unit = {
      val x = List(1,2,3,4,5)
      val x1 =List.range(10, 20)
      val x2 = 1::2::33::44::Nil
      val x3 = 100 :: x //(Prepending 100 in List x)
      val x4 = x1 ::: x2  //(Merging two list)
      val x5 = List.concat(x1 ,x2) //(Merging two list)

      x5.foreach {println} //Iterating list
      var sum=0
      var k = x.foreach (sum += _)

      val names =List("Sanjeeb","Hari","Adu","Bob")
      for (name <- names) println(name)
      for (name <- names if name.startsWith("S")                // <-- here is my if
          if name.endsWith("B".toLowerCase())  ) println(name)  // <-------


    }

}

Your question isn't clear enough. What is it you want this code to do? What error did you get from the compiler? At first blush, it looks like some { and } could help here. — Reid Spencer
– Reid Spencer, Commented Nov 30, 2014 at 16:13
Hello,I just want to add 2 if condition in For Loop. for (name <- names (if name.startsWith("S") || if name.endsWith("B".toLowerCase()) ) ) println(name) I need those person starting with S or ending with b. Is it clear sir. — user3858193
– user3858193, Commented Nov 30, 2014 at 16:44

dhg · Accepted Answer · 2014-11-30 17:42:57Z

3

Use braces:

for {
  name <- names 
  if name.startsWith("S")
  if name.endsWith("B".toLowerCase())
} {
  println(name)
}

It makes for nice notation when you have multiple things you're iterating over or multiple ifs or those things mixed together.

A semicolon between the ifs would also work:

for (name <- names if name.startsWith("S"); if name.endsWith("B".toLowerCase())) println(name)

answered Nov 30, 2014 at 17:42

dhg

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1 Comment

user3858193 Over a year ago

When you write two if statement (Line after Line) Is is referring to and clause or OR clause. I mean to ask your statements means name.startsWith("S") && name.endsWith("B".toLowerCase()) ????

MariuszS · Accepted Answer · 2014-11-30 16:08:00Z

1

You really needs two ifs ?

if (name.startsWith("S") || name.endsWith("B".toLowerCase())

answered Nov 30, 2014 at 16:08

MariuszS

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2 Comments

user3858193 Over a year ago

Can you please help me in below comand. While executing in eclipse below output is coming.var temp = "sanjeeb|panda" println(temp.split("\\|")) [Ljava.lang.String;@c8ec3bc

MariuszS Over a year ago

Result of split function is string array String[]. In Java I would use Arrays.toString(temp)

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