The source code to get value using the Specified key in HashMap is given below. The given program is compiled and executed successfully.
// Rust program to get value
// using Specified key in HashMap
use std::collections::HashMap;
fn main()
{
let mut map = HashMap::new();
map.insert("Key1", 101);
map.insert("Key2", 102);
map.insert("Key3", 103);
map.insert("Key4", 104);
match map.get(&"Key2") {
Some(&number) => println!("Value: {}", number),
_ => println!("Specified key is not found."),
}
}
Output:
Value: 102
Explanation:
Here, we created a HashMap. Then we got the value using the specified key in the get() method of HashMap and printed the result.
Program/Source Code:
The source code to get value using the Specified key in HashMap is given below. The given program is compiled and executed successfully.
Output:
Explanation:
Here, we created a HashMap. Then we got the value using the specified key in the get() method of HashMap and printed the result.
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