int max = Integer.MIN_VALUE; for (int i = 0; i < arr.length; i++) { max = Math.max(max, arr[i]); }

The code above finds the maximum value in an integer array called "arr".

The variable "max" is initialized to the minimum possible integer value using the constant "Integer.MIN_VALUE".

Then, a for loop is used to iterate through each element of the array. The loop starts at index 0 and continues until it reaches the end of the array (arr.length).

In each iteration, the Math.max() method is used to compare the current element of the array with the current maximum value stored in the "max" variable. If the current element is greater than the current maximum value, it becomes the new maximum.

After the loop finishes, the "max" variable holds the maximum value in the array.