Using Using while, do-while, for loop code make the same square image that will look like a square below: @@@@@@@@@@ @@@@@@@@@@ @@@@@@@@@@ @@@@@@@@@@ @@@@@@@@@@ Show step by step code using Java Code.

C++

Can you show an example in Java Write and trace nested for loops

Consider the following common task done repeatedly:• Read the next input (x = read())• If the input is not valid (valid(x)), exit the loop• Print the input read (print(x))• Repeat the loopUsing C++ syntax:Write the loop above using a pretest loop, posttest loop and a user-located loop control mechanism. From the three which one is more readable and why?

Using nested loops, write C++ code that will print following pattern:     * * * * ** * * ** * ** **** ** * ** * * ** * * * *

JAVA Write a java program that takes a string as input from the user and finds out if the string is a palindrome or not. A string is a palindrome if it reads the same from forward as well as from backward. For example, the string “madam” is a palindrome. Use a for loop to solve this problem.   Sample inputs and outputs:   Input: madam Output: palindrome   Input: Dad Output: palindrome   Input: hello Output: not a palindrome