I think it has 2 error, if it is Java. -32 should be replaced to 32. Also there is two errors in `i > arr1.length()` - first is mistyping (should be `<`) and second is that length is not a method, it is property. 
Final code:

```java
int[] arr1 = new int[32];
for(Integer i = 0; i<arr1.length; ++i){
    //do something
}
```

By the way, and instead of `++i` can be `i++`, it doesn't matter.
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