how number in an array using for loop code example

Example 1: arrays with for loops

// Find-Max variant -- rather than finding the max value, find the
// *index* of the max value
public int findMaxIndex(int[] nums) {
  int maxIndex = 0;  // say the 0th element is the biggest
  int maxValue = nums[0];

  // Look at every element, starting at 1
  for (int i=1; i<nums.length; i++) {
    if (nums[i] > maxValue) {
      maxIndex = i;
      maxValue = nums[maxIndex];
    }
  }
  return maxIndex;
}

Example 2: arrays with for loops

// Given an array of booleans representing a series
// of coin tosses (true=heads, false=tails),
// returns true if the array contains anywhere within it
// a string of 10 heads in a row.
// (example of a search loop)
public boolean searchHeads(boolean[] heads) {
  int streak = 0;     // count the streak of heads in a row
  
  for (int i=0; i<heads.length; i++) {
    if (heads[i]) {   // heads : increment streak
      streak++;
      if (streak == 10) {
        return true;  // found it!
      }
    }
    else {            // tails : streak is broken
      streak = 0;
    }
  }
  
  // If we get here, there was no streak of 10
  return false;
}