My husband has to wean off his Dilaudid prescription slowly. He was taking 4mg every 4 hours during the day for a total of 20mg to control pain. He has dropped 2mg a day and is now on 14mg.
Array inside Array. Arrays.equals() method does not compare recursively if an array contains another array on other hand Arrays.deepEquals() method compare recursively if an array contains another array. Arrays.equals() check is if element is null or not and then calls equals() method, it does not check for Array type.
Notice that the rows in each array are equal. Think of the rows as equal groups. Your students used equal groups to multiply in second grade. Look at this example. When equal groups are arranged in equal rows, an array is formed. When you show students the connection between equal groups and arrays, students can easily understand how to use arrays to multiply. They will use arrays again later to divide. Look at the multiplication sentence that describes the array below.