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Prime Number in Java
Learn prime number in java from basics in this free online training. Prime number in java course is taught hands-on by experts. Learn install java & java ide and operators in java in details with example. Best for beginners.
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About this course
In this course, you will learn about the Prime number in Java. You will start this course by learning what Java is along with its installation. Moving forward, you will understand the basic concepts of java such as variables, data types. Then, moving ahead you will get an idea about different types of operators. Then we will jump to control statements such as if, if-else and loops. Later, you will be learning the concept of prime numbers, how to build the logic for prime numbers in Java programming along with the code implementation.
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Course Outline
This module gives you detailed information and a demo of installing Java IDE- Eclipse on your system.
This module will go through the first Java program that will help you comprehend its syntax and semantics. For your better understanding, a hands-on demo is also available.
This module focuses on operators in Java. Arithmetic, logical, and relational operators are explained in detail with the help of code examples.
In this module of an online Java course for free, you will learn about the flow control statements like if, else if, while loop, and for loop in detail and go through the conditions they must follow. Hands-on sessions are available for these concepts to get a better hold of them.
Frequently Asked Questions
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How do you find a prime number in java?
To find whether a number is prime or not, divide the number by 2. If the output is a whole number, then it is not a prime number; if the result is not a prime number, then divide the same number by the following prime numbers like 3, 5, 7, 11 and so on. If the output is a whole number, then it is not a prime number; if not, then it is a prime number.
How do you check if a number is prime in java?
There is an inbuilt method in java used to program to find prime numbers. The isPrime(int n) method checks whether the passed parameter to the function is a prime number or not. The passed parameter is a prime number, then the function returns True; if the passed parameter is not a prime number, then it returns False. If the number is less than 1 i.e., if(inputNum<=1), the function returns False.
How do you find the prime number between 1 to 100?
Program a simple algorithm to find prime numbers between 1 to 100.
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Start
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SET a = 0, n = 0, i = 1, j = 1;
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REPEAT 4 to 11 until n < 100
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SET j = 1
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Set a=0
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REPEAT 7 to 8 until j <= i
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If i % j == 0 then a = a + 1
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j = j + 1
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if a = 2 then print i
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N = n + 1
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i = i + 1
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END
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