website/content/ta/spring2018/cpsc220/midtermreview.md

# More Midterm Review

Let us suppose that we have the following array

```java
int[] b = {11, 12, 15, 16, 21}
```

## Increase all elements by 2

```java
for (int i = 0; i < b.length; i++) {
    b[i] += 2;
}
```

## Print all elements of array

```java
for (int i = 0; i < b.length; i++) {
    System.out.println(b[i]);
}
```

## Sum all the elements of an array

```java
int sum = 0;
for (int i = 0; i < b.length; i++) {
    sum += b[i];
}
```

## Access Last Element of Array

```java
System.out.println(b[b.length - 1]);
```

## Access the middle element

```java
System.out.println(b[b.length / 2]);
```