In this article we will learn to implement a Java program that illustrates how runtime polymorphism is achieved. A Java program is provided below that demonstrates how runtime polymorphism is achieved. abstract class Figure { int dim1, dim2; Figure(int x, int y) { dim1 = x; dim2 = y; } abstract void area(); } class […]
In this article we will learn to implement a Java program for sorting a given list of names in ascending order. A Java program is provided for sorting a given list of names or strings in ascending order. Program is as follows: import java.util.*; class Sorting { void sortStrings() { Scanner s = new […]
In this article we will learn to implement a Java program that checks whether a given string is a palindrome or not. A Java program is provided below that reads a string, checks whether it is a palindrome or not. Program is as follows: import java.util.*; class Palindrome { void isPalindrome(String str) { String […]
In this article we will learn to implement a Java program for matrix multiplication and matrix transpose. A Java program is provided below to check the compatibility for multiplication, if compatible, multiplies two matrices and also finds its transpose. import java.util.Scanner; class Matrix { void matrixMul(int m, int n, int p, int q) { int[][] […]
In this article we will try to implement a Java program to print prime numbers from 1 to n. A Java program is provided below that prompts the user for an integer and then prints out all prime numbers up to that integer. Program is as follows: import java.util.Scanner; class Prime { void primeGen(int […]
In this article we will learn to implement a Java program to print the nth element in the Fibonacci series. A Java program is provided below to print the nth element in the Fibonacci series using both non-recursive and recursive methods. Program is as follows: import java.util.*; class Fibonnaci { int nFib(int n) { […]
In this article we will learn to implement sorting an array in Java. A Java program is provided below to read a list of numbers and sort them. I have used exchange sort to sort the array in ascending order. The program is as follows: import java.util.*; class Driver { static void printArray(int […]
In this post we are going to look at some very basic and frequently asked array programs in Java interviews . Different programs are written as separate functions in the class ArrayClass. These programs are restricted to integers. Following programs are available: Reading elements into an array Printing elements in an array Printing the sum of […]