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Basic java programs

  • Count the Number of Occurrences of a Character in a String in Java
    Basic java programs
    05 April

    Count occurrences of Character in String

    In this article, we will look at a problem: Given an Input String and a Character, we have to Count Occurrences Of character in String. For Example, If the Given String is : "Java2Blog" and we have to count the occurrences of Character ‘a’ in the String. Therefore, Count of 'a' is : 2 , […]

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  • Basic java programs String
    24 December

    How to capitalize first letter in java

    Learn about how to capitalize first letter in java.

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  • Basic java programs Core Java interview Number
    09 October

    Find first and last digit of a number

    In this article, we are going to find first and last digit of a number. To find first and last digit of any number, we can have several ways like using modulo operator or pow() and log() methods of Math class etc. Let’s see some examples. Before moving to example, let’s first create an algorithm […]

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  • Basic java programs Core Java interview Number
    03 October

    Happy Number program in Java

    In this article, we are going to learn to find Happy Number using Java. Let’s first understand, what is Happy Number? What is a Happy Number? A number which leaves 1 as a result after a sequence of steps and in each step number is replaced by the sum of squares of its digit. For […]

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  • Basic java programs Core Java interview Number
    30 September

    Find Perfect Number in Java

    In this article, we are going to find whether a number is perfect or not using Java. A number is called a perfect number if the sum of its divisors is equal to the number. The sum of divisors excludes the number. There may be several approaches to find the perfect number. For example: 28 […]

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  • Basic java programs Core Java interview Number
    28 September

    How to find Magic Number in Java

    In this article, we are going to learn to find Magic Number using Java. Let’s first understand, what is Magic Number? What is a Magic Number? A number which leaves 1 as a result after a sequence of steps and in each step number is replaced by the sum of its digits. For example, if […]

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  • Basic java programs Core Java interview Number
    28 September

    Number guessing game in java

    In this article, we will implement Number guessing game in java. The number guessing game is based on a concept where player guesses a number between a range. If player guesses the exact number then player wins else player looses the game. Since this game provides limited attempts, so, player must guess the number with […]

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  • Basic java programs Number
    18 September

    Return second last digit of given number

    In this topic, we will learn to get the second last digit of a number with the help of examples. There can be several ways to get second last digit; here we are discussing some solutions. Using modulo operator Here, we are using modulo and divide operators to find the second last digit. The modulo […]

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  • Basic java programs Number
    10 October

    Java program to print table of number

    In this post we will see how to print table of number in java. It is good program to practice for loop in java. [crayon-68377649289e3502376182/] Output: Enter a Number : 8 Table of 8 is 8 * 1 = 8 8 * 2 = 16 8 * 3 = 24 8 * 4 = 32 […]

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