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Core Java interview

  • Core Java interview java programs
    05 October

    Print prime numbers from 1 to 100 in java

    In this program, we will print prime numbers from 1 to 100 in java. A prime number is a number which has only two divisors 1 and itself. To check if the number is prime or not, we need to see if it has any other factors other than 1 or itself. If it has, […]

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  • Core Java interview Multithreading
    29 May

    How to print even and odd numbers using threads in java

    In this post, we will see how to print even and odd numbers using threads in java. see also: How to print sequence using 3 threads in java Problem You are given two threads. You need to print odd numbers using one thread and even numbers using another thread.You need to print in natural order […]

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  • FizzBuzz Java
    Core Java interview java programs
    31 March

    FizzBuzz program in java

    In this post, we will see how to program FizzBuzz in java. Fizzbuzz is a fun game played generally by school children. It is simple game in which when your turn comes, you need to say the next number. So here are rules of the game: If number is divisible by 3, then you need […]

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  • Basic java programs Core Java interview
    10 March

    Print pyramid pattern: 1 3*2 4*5*6 pattern in java

    In this post, we will see how to print the following pyramid pattern. Problem Input : n = 4 Output : 1 3*2 4*5*6 10*9*8*7Input : n = 5 Output : 1 3*2 4*5*6 10*9*8*7 11*12*13*14*15 Solution If you notice the pattern we need to print odd rows in increasing order and even rows in […]

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  • Core Java interview OOPS
    30 January

    Difference between early binding and late binding in java

    Binding in Java refers to the process of associating a method or function body with a method or function call by the Java Compiler. In simpler words, when a function is called by the Java compiler the task of correctly locating the method for the respective function is binding. Depending on when the compiler is […]

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  • Core Java interview String
    21 October

    Difference between equals() and == in java

    In this post, we will see about the difference between equals and == in java. This is most asked java interview question for fresher or 2-year experienced java developer and it might be confusing sometimes. Let’s try to understand each quickly. Equality operator “==” Equality operator can be used to compare primitives but when you […]

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  • Core Java interview Java Collections
    24 May

    Collections in java

    In this tutorial, we will see  about Collections in java. Collection framework is core part of java programming language. It is used in almost all the applications. Collections framework provides a way to store and retrieve the collection of elements. This framework has many interfaces and classes which makes programmer life easy. Let’s go through […]

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  • Java 8 Tutorial
    Core Java interview Java 8
    20 May

    Java 8 tutorial

    In this post, we will see about Java 8 tutorial. I have written a lot of tutorials on Java 8. This is index post for all Java 8 posts. Java 8 has lots of new features which will change the way you do programming. Here is a list of features you need to know to […]

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  • Basic java programs Core Java interview String
    20 January

    Java program to count number of words in sentence

    In this tutorial, we will see a simple java program to count number of words in sentence. [crayon-687046e683a5c806030360/] Output: Enter a Sentence : Java2Blog is a technical blog. Total number of words are 5 That’s all about Java program to count number of words in sentence.

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