Associative array/Iteration: Difference between revisions
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(→{{header|Rust}}: Added output, formatted according to the guidelines) |
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=={{header|Rust}}== |
=={{header|Rust}}== |
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<lang Rust>use std::collections::HashMap; |
<lang Rust>use std::collections::HashMap; |
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fn main() { |
fn main() { |
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let mut squares = HashMap::new(); |
let mut squares = HashMap::new(); |
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squares.insert("one", |
squares.insert("one", 1); |
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squares.insert("two", 4); |
squares.insert("two", 4); |
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squares.insert("three", 9); |
squares.insert("three", 9); |
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for key in squares.keys() { |
for key in squares.keys() { |
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println!("Key {}", key); |
println!("Key {}", key); |
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} |
} |
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for value in squares.values() { |
for value in squares.values() { |
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println!("Value {}", value); |
println!("Value {}", value); |
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} |
} |
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for (key, value) in squares.iter() { |
for (key, value) in squares.iter() { |
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println!("{} => {}", key, value); |
println!("{} => {}", key, value); |
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} |
} |
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}</lang> |
}</lang> |
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{{out}} |
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<pre> |
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Key three |
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Key two |
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Key one |
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Value 9 |
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Value 4 |
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Value 1 |
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three => 9 |
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two => 4 |
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one => 1 |
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</pre> |
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=={{header|Scala}}== |
=={{header|Scala}}== |
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