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en/codes/ruby/chapter_hashing/hash_map.rb
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Yudong Jin
Translate all code to English (#1836)
31 дек 2025, 02:44
Не верифицирован
31 дек 2025, 02:44
2778a6f
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=begin File: hash_map.rb Created Time: 2024-04-14 Author: Xuan Khoa Tu Nguyen (ngxktuzkai2000@gmail.com) =end require_relative '../utils/print_util' ### Driver Code ### if __FILE__ == $0 # Initialize hash table hmap = {} # Add operation # Add key-value pair (key, value) to the hash table hmap[12836] = "Xiao Ha" hmap[15937] = "Xiao Luo" hmap[16750] = "Xiao Suan" hmap[13276] = "Xiao Fa" hmap[10583] = "Xiao Ya" puts "\nAfter adding is complete, hash table is\nKey -> Value" print_hash_map(hmap) # Query operation # Input key into hash table to get value name = hmap[15937] puts "\nInput student ID 15937, found name #{name}" # Remove operation # Remove key-value pair (key, value) from hash table hmap.delete(10583) puts "\nAfter removing 10583, hash table is\nKey -> Value" print_hash_map(hmap) # Traverse hash table puts "\nTraverse key-value pairs Key->Value" hmap.entries.each { |key, value| puts "#{key} -> #{value}" } puts "\nTraverse keys only Key" hmap.keys.each { |key| puts key } puts "\nTraverse values only Value" hmap.values.each { |val| puts val } end