In the Java program to check if a file or directory has read and write permission or not, we need to import java.io.file library first which contains all the built-in functions than can check the rights to access of a file. Sample Output: /Desktop/sample.txt cannot write. /Desktop/sample.txt cannot read.
In the above Java program to calculate the average value of array elements, we will loop through each element using for loop and then adding and storing the value in sum variable and dividing it by the length of the array. Sample Output: Average value of the array elements is : 50.0
In the above Java program to convert a Roman number to an integer number, we will use if-else ladder. Sample Output: Input a roman value : XVIICM Roman Number: XVIICM Equivalent Integer: 917
In the above Java program to replace all the vowels in a string with a specified character we created a function named validate() and then with the help of a built-in function “replaceAll”, replaced the vowel with passed string. Sample Output: Input the string: lazy frog Original string: lazy frog After replacing vowel(s) with specified…
To understand the above Java program to sort an array of given integers using Merge sort Algorithm, we need to understand what is merge sort. Merge sort is an O (n log n) comparison-based sorting algorithm. Most implementations produce a stable sort, which means that the implementation preserves the input order of equal elements in…
In the above Java program to display the current date and time, we have used built-in classes and method to fetch the system date and then passed the month value in getMonthName() function to get the name of the month. sample Output: Current date and time: Friday April 7, 2023 6:4:35
In the above Java program to check whether a string is a valid password or not, we created a method is_Valid_Password() and called it into the main method. inside the is_Valid_Password() function we will check all the conditions on the basis of the conditions given. Sample Output: 1. A password must have at least ten…
In the above Java program to display the first 50 pentagonal numbers, we first need to understand what is pentagon? A pentagonal number is a figurative number that extends the concept of triangular and square numbers to the pentagon, but, unlike the first two, the patterns involved in the construction of pentagonal numbers are not…