TOP 10 Java Programs for Freshers....!

Here are my list of 10 Java coding interview questions and answers, which is good to prepare before appearing on any Java interviews. As I said Java coding questions are mostly based on programming, logical analysis and problem solving skill , so better to get it right in first place. Any way you may be able to solve and find answers of these Java coding questions by yourself, but if you stuck do a google, and you can get many alternative ways to solve these problem. Some times knowing more than one way to solve any programming question or coding problem in Java also helps to impress interviewer. This list mainly contains basic programs asked on Interviews.

Verify a number is Even/Odd

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import java.util.Scanner; public class EvenOdd{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter a number which you want to check whether that is even or odd"); int n = in.nextInt(); if(n%2==0){ System.out.println(n+" is an even number."); }else{ System.out.println(n+" is an odd number."); } } }

Output

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Enter a number which you want to check whether that is even or odd 4 4 is an even number.

Swapping Numbers without using 3rd variable

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import java.util.Scanner; public class Swapping{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter the 1st number: "); int x = in.nextInt(); System.out.println("Enter the 2nd number: "); int y = in.nextInt(); System.out.println("Initial value of x: "+x+" and y: "+y); x = x+y; y = x-y; x = x-y; System.out.println("After swapping value of x: "+x+" and y: "+y); } }

Output

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Enter the 1st number: 43 Enter the 2nd number: 56 Initial value of x: 43 and y: 56 After swapping value of x: 56 and y: 43

Factorial of a number

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import java.util.Scanner; public class Factorial{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter the number whose factorial you want: "); int n = in.nextInt(); int f =1; for(int i=n; i>0; i--){ f = f*i; } System.out.println("Factorial of "+n+" is "+f); } }

Output

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Enter the number whose factorial you want: 6 Factorial of 6 is 720

How to get the prime numbers between a given range.

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package javaTutorial; import java.util.ArrayList; import java.util.Scanner; public class GetPrimeNumbers{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter a number from which you want prime number: "); int p1 = in.nextInt(); System.out.println("Enter one more number till which you want prime number: "); int p2 = in.nextInt(); ArrayList<Integer> prime = new ArrayList<Integer>(); int i=2; for(int p=p1; p<=p2; p++){ i=2; for(; i<10; i++){ if(p%i==0 && p!=i){ break; } } if(i==10){ prime.add(p); } } System.out.println("Prime numbers between "+p1+" and "+p2+" are: "); for(int j=0; j<prime.size(); j++){ System.out.print(prime.get(j).toString()+", "); } } }

Output

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Enter a number from which you want prime number: 10 Enter one more number till which you want prime number: 30 Prime numbers between 10 and 30 are: 11, 13, 17, 19, 23, 29,

Check a number is prime or not.

Note- A number is prime if it is not divisible by any other number except itself.

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import java.util.Scanner; public class PrimeNumber{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter a number greater than 2 which you want to check whether that number is prime or not: "); int p = in.nextInt(); int i=2; for(; i<10; i++){ if(p%i==0 && p!=i){ System.out.println("Entered number "+p+" is not a prime number."); break; } } if(i==10){ System.out.println("Entered number "+p+" is a prime number."); } } }

Output

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Enter a number greater than 2 which you want to check whether that number is prime or not: 139 Entered number 139 is a prime number.

Check if a number is Armstrong or not.

Note- A number is armstrong if the sum of the cubes of digit of number is equal to the number.
ex- 407 = 4*4*4 + 0*0*0 + 7*7*7

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import java.util.Scanner; public class ArmstrongNum{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter a number which you want to check whether that is armstrong or not: "); int n = in.nextInt(); int a = n, r=0, s=0; while(a!=0){ r = a%10; a = a/10; s = s + r*r*r; } if(s==n){ System.out.println("Number "+n+" is an armstrong number."); }else{ System.out.println("Number "+n+" is not an armstrong number."); } } }

Output

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Enter a number which you want to check whether that is armstrong or not: 407 Number 407 is an armstrong number.

Floyd Triangle

Note- Floyd Triangle is like
1
2 3
4 5 6
7 8 9 10
————
Code-

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import java.util.Scanner; public class FloydTriangle{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter the number of rows which you want in your Floyd Triangle: "); int r = in.nextInt(); int n=0; for(int i=0; i<r; i++){ for(int j=0; j<=i; j++){ System.out.print(++n+" "); } System.out.println(); } } }

Output

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Enter the number of rows which you want in your Floyd Triangle: 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Palindrome of String or reverse a String.

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import java.util.Scanner; public class PalindromeString{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter the string which you want to check whether that is palindrome or not: "); String s = in.next(); String r = ""; for(int i=s.length()-1; i>=0; i--){ r = r+s.charAt(i); } System.out.println("Reverse of entered string "+s+" is "+r); if(r.equals(s)){ System.out.println("String "+s+" is palindrome."); }else{ System.out.println("String "+s+" is not palindrome."); } } }

Output

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Enter the string which you want to check whether that is palindrome or not: selenium Reverse of entered string selenium is muineles String selenium is not palindrome.

Binary Search

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import java.util.Arrays; import java.util.Scanner; public class BinarySearch{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter the size of the array which should be greater than zero else it will throw InputMismatchException : "); int size = in.nextInt(); int[] array = new int[size]; System.out.println("Enter the elements of the array: "); for(int i=0; i<size; i++){ array[i] = in.nextInt(); } System.out.println("Enter the search element: "); int s = in.nextInt(); Arrays.sort(array); //binary search will work on sorted array only so sort first int first, last, middle; first=0; last = size-1; middle = (first+last)/2; int i=0; for(; i<size; i++){ if(s>array[middle]){ first = middle+1; }else if(s<array[middle]){ last = middle-1; }else{ printArray(array); System.out.println("Element "+s+" found in the array."); break; } middle= (first+last)/2; } if(i==size){ printArray(array); System.out.println("Element "+s+" is not found in the array"); } } public static void printArray(int[] a){ System.out.println("Array of elements: "); System.out.print("{"); for(int i:a){ System.out.print(i+","); } System.out.println("}"); } }

Bubble Sort

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package SeleniumMakeItEasy; import org.apache.commons.lang3.ArrayUtils; public class BubbleSort{ public static void main(String[] args){ int[] a = {2,3,2,5,3,3,6,1,2,5}; int l = a.length; for(int i=0;i<l; i++){ for(int j=0; j<l-1; j++){ if(a[j]>a[j+1]){ a[j] = a[j] + a[j+1]; a[j+1] = a[j] - a[j+1]; a[j] = a[j] - a[j+1]; }else if(a[j]==a[j+1]){ a = ArrayUtils.remove(a,j); l = a.length; } } } for(int s: a){ System.out.println(s); } } }

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Lollipop Lagelu Bhojpuri Full Lyrics

Lollipop Lagelu Full Lyrics

Lagaweli jab lipistic, hilela arra distric
Tu, lagaweli jab lipistic, hilela arra distric
Zilla top lalelu
Komariya x 2 kar lopa loap, lalipop lagelu (2)

Galiya pe baliya jhume
Muski pe jhumela tata
Gorakhpur devariya mein tohar
Book rahela sata
Pahrelu tu jab nathuniya
Hilela paghuwa mohaniya
Chaka tu chaka chak lagelu
Komariya x 2 kar lopa loap, lalipop lagelu (2)

Ghaghra pa chapra hile
Boli pe chalela goli
Dupatta chalwawe katta
Mar karawela la choli
Dekhike chadhal jawani
Hile patna rajdhani
Malai baraf lage lu (2)
Komariya x 2 kar lopa loap, lalipop lagelu (2)

Bindiya pe baksar dole
Bali sasaram dhihari
Motihaar sivan dole
Lahraye jab dhani chunri
Chalelu chal matwali
Jab hitwo taane dunali
Tu aallo lage lu (2)
Komariya x 2 kar lopa loap, lalipop lagelu (2)

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Color Meanings

Color Meanings – Learn about Colors and Symbolism

Colors play a very important role in our lives, whether we realize it or not. They have the ability to affect our emotions and moods in a way that few other things can.

This page describes color meanings importance for us as people, what they do to our emotions and how color meaning through advertising can be used to influence our view of a product. You will be surprised how much influence colors have in our everyday lives.

How does a yellow room make your feel? Does the blue color calm and relax you? Designers have already for a long time understood how color can affect moods and emotions in a big way. Color is a very powerful tool for communicating and can be used to indicate an action, affect the mood and cause reactions in peoples mind. Some colors can actually raise your blood pressure and increase metabolism. They have even been known to cause eyestrain, if looked on long enough.

How color meanings change

Your own feelings about colors can of course also be very personal. Color meanings may have something to do with your past, your experiences or your culture. For instance, while the color white is often used in many Western countries to represent purity and innocence, it is seen as a symbol of mourning in many Eastern European countries.

How significant is the meaning of colors and why do they play such a big role in our lives? What impact do they have on our body and mind? Read on to explore color meanings, how they are used, the effects they may have and some of the latest research on color psychology.

A preview of each colors meaning

The color red
Power, energy, passion, desire, speed, strength, power, heat, love, aggression, danger, fire, blood, war, violence, intensity, celebration, luck, stop or danger, Christmas and Valentine’s Day. 

The color yellow
Joy, optimism, happiness, danger, sunshine, idealism, imagination, hope, summer, gold, deceit, philosophy, dishonesty, cowardice, betrayal, jealousy, disease and warning. 

The color green
Nature, environment, health, good luck, renewal, youth, vigor, spring, generosity, fertility, jealousy, inexperience, envy, misfortune, start signal, St. Patrick’s Day and Christmas. 

The color blue
Peace, harmony, unity, trust, truth, security, confidence, conservatism, order, sky, water, cold, technology, cleanliness, depression, loyalty, immortality, stability, masculinity and protection. 

The color purple
Royalitet, nobility, spirituality, ceremony, mystery, transformation, wisdom and enlightenment. 

The color orange
Energy, balance, warmth, enthusiasm, vitality, expansion, flamboyant, autumn and Halloween. 

The color gray
Safety, reliability, intelligence, melancholy, modesty, dignity, maturity, soundness, functionality, old age and grief. 

The color brown
Earth, hearth, home, outdoors, reliability, comfort, endurance, stability, simplicity, comfort, trees, nature and autumn. 

The color white
Reverence, virginity, nothingness, cleanliness, peace, humility, precision, innocence, youth, birth, winter, snow, goodness, marriage, cold, clinical and sterility. 

The color black
Power, sophistication, formality, elegance, wealth, mystery, fear, evil, anonymity, unhappiness, depth, style, sad, remorse, anger, underground, technical, grief and death.

                            Colors, like features, follow the changes of the emotions.

                            – Pablo Picasso

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