Category Archives: Java

Java program to find perimeter and area of rectangle

Write a Java program to input length and width and find perimeter and area of rectangle. Logic to find perimeter and area of a rectangle, whose length and width are given. In this example we will learn to write basic logical program in Java. We will learn to find perimeter and area of rectangle.

Example
Input

Length of rectangle = 30
Width of rectangle  = 20

Output

Perimeter of rectangle is 100.0 units.
Area of rectangle is 600.0 sq. units.

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Java program to perform all arithmetic operations

Write a Java program to perform all arithmetic operation. How to perform arithmetic operations in Java programming. In this example we will learn to input two integer from user and perform all arithmetic operations.

Example
Input

First number: 15
Second number: 4

Output

Sum : 19
Difference : 11
Product : 60
Quotient : 3
Modulus : 3

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Basic input using Scanner class in Java

Write a java program to perform basic input using Scanner class. In this article I will explain how to input all basic data types using Scanner class in Java. We will learn how to use java.util.Scanner class to input data from user.

Example
Input

Enter charater value: c
Enter integer value: 10

Output

You entered charater : c
You entered integer: 10

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Hello world program in Java

Programming in Java has always been fun for me. With this post I begin the Java programming tutorials journey. In this post, we will learn how to write a simple Hello world program in Java. We will learn basic structure of a Java program, how to write, compile and execute a Java program.

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