Java Taskbook Level 5.10

Display the following pyramid on the screen:

Given an array with some integers, for example, like this:

javaint[] arr = {123, 456, 789};

Write code that will reverse the numbers in this array as follows:

java{321, 654, 987}

Given an array with some integers, for example, like this:

javaint[] arr = {123, 333, 133};

Replace all threes in each number with zeros, except for the threes at the beginning of the number:

java{120, 300, 100}

Ask the user for a number. Print the multiplication table for that number to the console. Below is an example for two:

terminal1 * 2 = 2
2 * 2 = 3
3 * 2 = 6
4 * 2 = 8
5 * 2 = 10
6 * 2 = 12
7 * 2 = 14
8 * 2 = 16
9 * 2 = 18

Given a line:

java"""
  text1
  text2
  text3
  text4
  text5
"""

Split this string into an array so that each non-empty line of text becomes a separate array element:

java[
  "text1",
  "text2",
  "text3",
  "text4",
  "text5",
]