MapSum (leetcode-in-java 1.8 API)

java.lang.Object
- g0601_0700.s0677_map_sum_pairs.MapSum

```
public class MapSum
extends Object
```

- Constructor Summary
  
  Constructors
  Constructor Description
  
  MapSum()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  void insert(String key, int val)
  
  int sum(String prefix)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- MapSum
```
public MapSum()
```

Method Detail

insert

public void insert(String key,
                   int val)

sum
```
public int sum(String prefix)
```