mohno007

import java.lang.SuppressWarnings;
import java.util.Optional;
import java.util.Objects;

class hashmap {
    static class HashMap<K, V> {

        private class Entry {
            public final K key;
            public V value;

mohno007

struct Obj {
    value: i64
}

fn main() {
    let x = Obj { value: 1 };
    // x.value = 2; // 無理

    let mut y = Obj { value: 1 };
    y.value = 2;