Given value is not assigned in the if statement in spark scala ?

i have assigned following values , issue with this is that end1 and end2 values are not assigned when used inside the if statement. i have used string interpolation but still not assigned

     my sample code is like this , three if conditions , one is like below
 .........
 .........
if(tp <="1.0")
 {   
   end1="nd"
   end2="ms"
 }


breakable {

for (row <- df.rdd.collect) {
var ts=row.mkString(",").split(",")(1)
var nd=row.mkString(",").split(",")(2)
var tp=row.mkString(",").split(",")(3)
var ms=row.mkString(",").split(",")(4)

    println(end1)  // this prints nd
    println(end2) // this prints ms

  // but in if statement end1 and end2 values doesnot assign with nd and ms 
   - neither it shows any error nor assigning the values

 if( end1 <="0.5" || end2 <="0.5")
   endtime=ts
   println("end timestamp is" + endtime)
   break()
   }
 }

 // i want the above if statement to be execute like

    if( nd <="0.5" || ms <="0.5")  


   // end1 and end2 changes as per the condition
    but here the value is not assigned and do go inside the if statement