Permutations of array in java. Given array of distinct integers, print all permutations of the array.

Java programming For an array of 20 integers (Declare all necessary variable).Write separate code segments to do the following (NOT a whole completeprogram). *  Find and display the negative odd numbers in reverse order.

In java Define and create a 2-dimensional array of integers with 4 rows and 8 columns. Print the elements of the array in table format (rows and columns). Replace the element in the second row and third column of the array with the value 99.

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Can you help with the following question? Write a Java program that creates and initializes an array of integers. Then it finds and prints theminimum odd value in this array with its index. Assume that all the values < 1,000,000.

Given an array arr of type int, along with two int variables i and j, write some code that swaps the values of arr[i] and arr[j]. Declare any additional variables as necessary.

* in java*    Write and algorithm to fill an array A with numbers equal to its index and then reverse the array. Use only for loops to do both tasks.   I want details: input output process