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…
In the above Java program to count all vowels in a string we use built-in function count() and with the help of a counter variable, calculate each and every vowel. Sample Output: Input the string: welcome To the world of java Number of Vowels in the string: 9
In the above Java program to print a right angles triangle from a number, we have use nested loop where i is row and j is column in that row. Sample Output: Input number of rows : 10 1 12 123 1234 12345 123456 1234567 12345678 123456789 12345678910