go - How to filter the elements in the given data using golang? -

this input data:

 name   dept    college  a1     cse     sr1  a2     cse     sr2  a3     ece     sr1  a4     eee     sr3  a5     ece     sr1  a6     mech    sr2  a7     cse     sr1  a8     eee     sr1  a9     ece     sr3  a10    mech    sr3  a11    eee     sr1 

expected output: if filter college name (for example: --flag=sr3) output should print under sr3 , names , depts there.

a4 eee  a10 mech 

1. you need design data model data. have several alternatives here simple 1 struct 3 fields: name, department , college. data in array. read data structures here: https://golang.org/doc/effective_go.html#data
2. you need initialise data structure. maybe have input in text file? can use methods of fmt or bufio read it.
3. they need read command line arguments - them os.args.
4. the filter data , output result. simple for loop on slice 1 if in it. use println output result.

sample code:

package main  import (   . "fmt"   "os" )  type record struct {   name string   department string   college string }  func main() {   records := make([]record, 0)    // add records   records = append(records, record{"a1", "cse", "sr1"})   ...    // filter os.args   filter := ...    _, v := range records {     if v.college == filter {       println(v.name, v.department)     }   } } 

p.s. if ask why question downvoted (not me) - because not demonstrate tried solve problem. see https://stackoverflow.com/help/on-topic