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Julian Nelson
Julian Nelson

100 Java Programs With Output: Useful Collecti...

Any technical interview is not complete without a question on recursive method. This question is one of them. You have to write a java program to reverse a given string using recursive method. [Solution]

100 Java Programs with Output: Useful collecti...

The bundle of java programming interview questions is incomplete without the questions on strings. You will face many questions on string handling in your interview. I have listed some of them in this post. It is one of them. [Solution]

I think array related programs along with string handling programs are the most asked java programs for interview. In this program, I have discussed two methods to find duplicate elements in the given array. one is using Brute Force method and another one is using HashSet. [Solution]

Write a java program to perform matrix operations like matrix addition, matrix subtraction, matrix multiplication and transpose of a matrix. This program is one of the matrix related java programs asked in interview. [Solution]

Write a java program to check whether given number is binary or not. A binary number is a number which contains only 0 or 1. For example : 101101, 110010110, 10010011 are binary numbers. This program is one of the number related basic java programs for interview. [Solution]

Write a java program to find trigonometric values like sin, cos, tan, sec, cosec and cot of an angle. This program is one of the mathematics related java practice programs. [Solution]

Write a java program to convert decimal to binary, decimal to octal and decimal to hexadecimal. Number conversion programs are very common java interview programming questions for freshers. [Solution]

Write a java program to reverse an array without using an additional array. That means your program should reverse the given array in place. For example, if 12, 9, 21, 17, 33, 7 is the input array, then your program should return 7, 33, 17, 21, 9, 12 as output. [Solution]

Write a java program to create spiral of numbers or spiral matrix or circular matrix of order n*n in both clockwise and anti-clockwise directions. Spiral matrix should be filled with the values from 1 to n*n. [Solution]

Palindrome programs are one of the most asked java programming interview questions for freshers. In this article, you will learn to write palindrome program using 4 different methods. They are iterative method, recursive method, Palindrome program using StringBuffer and palindrome program using IntStream of Java 8. [Solution]

Write a java program to remove all vowels from a string. Your program should take input string from the user and remove all vowels from this string and print it without vowels. This type of java coding questions are very popular in interview for freshers. [Solution]

Write a java program to find the most frequent element in an array. In this article, you will learn to find the most frequent element and its frequency in an array of integers using HashMap. This type of java logical programs related to array or strings are very common in interview for freshers. [Solution]

How to modify a text file or How to replace specific string in a text file? is one of the basic java programs for interview related to I/O programming or file handling programming. [Solution]

Harshad number or niven number is a number which is divisible by the sum of its digits. For example, 21 is a Harshad number because 21 is divisible by the sum of its digits (2+1=3). An interviewer ask this type of logical programs in java interview to test how do you implement logic in your code. [Solution]

In this matrix, 7 is the saddle point. Because it is the smallest in its row (2nd row) and largest in its column (2ndcolumn). This program is one of java logical programs asked in interview for freshers. [Solution]

You have seen union and intersection of two arrays. These are something different logical programs in java where you need to find union and intersection of multiple arrays. [Solution]

Your program should take two text files as input and compare their content line by line and find out whether they have same content or not. This is one of the file handling java programs for interview. [Solution]

Symmetric matrix is a square matrix which is equal to its transpose. If A[][] is a square matrix with (M x M) order, then this matrix is said to be symmetric if every element at ith row and jth column is equal to element at jth row and ith column i.e A[i][j] == A[j][i]. Your program should take input matrix from the user, display it and check whether the matrix is symmetric or not. As I said earlier, an interviewer ask this type of java programs for interview to check how do you implement logic in your code. [Solution]

Java programs to print numbers or characters or any other symbols in different shapes or patterns are one of the frequently asked java interview coding questions for freshers. Because, they test the logical ability as well as coding skills of a candidate. In this post, I have collected some different pattern programs asked in interview. I hope they will be helpful for you guys to prepare for interview. [Solution]

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My problem with this type of question is that most of them do not reflect the types of problems you encounter on the job. A good java programmer knows how to perform task needed by the job. A DB centric application will manipulate many data results efficiently. That might mean knowing lists, iterations, or using lombok. A realtime application will be more focused on things like concurrency. I've used Java professionally since it was in beta nad have never had to shift bits.

A singleton class in java can have only one instance and hence all its methods and variables belong to just one instance. Singleton class concept is useful for the situations when there is a need to limit the number of objects for a class.

Ans: In java, to convert an object into byte stream by serialization, an interface with the name Serializable is implemented by the class. All objects of a class implementing serializable interface get serialized and their state is saved in byte stream.

As shown in Figure 3.1, System is defined in a file called, and PrintStream is defined in files are part of the Java library, which is an extensive collection of classes you can use in your programs.

At this point, you have seen enough Java to write useful programs that solve everyday problems.You can (1) import Java library classes, (2) create a Scanner, (3) get input from the keyboard, (4) format output with printf, and (5) divide and mod integers.Now we will put everything together in a complete program:

To understand a programming language you must practice the programs, this way you can learn any programming language faster. This page includes java programs on various java topics such as control statements, loops, classes & objects, functions, arrays etc. All the programs are tested and provided with the output. If you new to java and want to learn java before trying out these program, refer Java Tutorial.

Spark 2.1.1 works with Java 7 and higher. If you are using Java 8, Spark supportslambda expressionsfor concisely writing functions, otherwise you can use the classes in package.

A palindrome is a word, phrase, number, or other sequence of symbols or elements that reads the same forward or reversed. For example: 12121 is palindrome as it reads same forward or reversed. madam is also a palindrome . So we need write java programs to check if linked list is palindrome or not.Solution : Java program to check if linked list is palindrome.

46. Which of the following is true about servlets?a) Servlets can use the full functionality of the Java class librariesb) Servlets execute within the address space of web server, platform independent and uses the functionality of java class librariesc) Servlets execute within the address space of web serverd) Servlets are platform-independent because they are written in javaView AnswerAnswer: bExplanation: Servlets execute within the address space of a web server. Since it is written in java it is platform independent. The full functionality is available through libraries. 041b061a72


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