Single Linked List Program in Java
The Single Linked List Program in Java creates a node, inserts a node, and prints the linked list.
Tag: java
A program in Java to check if a file or directory has read and write permission or not.
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.
A program in Java to calculate the average value of array elements.
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
A program in Java to convert a Roman number to an integer number.
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
A program in Java to replace all the vowels in a string with a specified character.
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…
Java Program to sort an array using Merge sort .
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…
Java program to display the current date and time.
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
A program in Java to check whether a string is a valid password or not.
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…