proj/proj1b/ArrayDeque.java
private boolean checkUsageR() {

        // compare ratio with 0.25
        return (usage < 0.25 && (Array.length > 16));
    }
/**  private helper function
     *
     *   Check usage of array, return true will halve the array.
     * */
private helper function
Check usage of array, return true will halve the array.
private helper function Check usage of array return true will halve the array .
private boolean checkUsageR() {
        return (usage < 0.25 && (Array.length > 16));
    }
private boolean checkUsageR ( ) { return ( usage < 0.25 && ( Array . length > 16 ) ) ; }
private helper function
   Check usage of array, return true will halve the array.
private helper function Check usage of array return true will halve the array .
// compare ratio with 0.25