Write a Java program to input length and width of a rectangle and find area of the given rectangle. How to calculate area of a rectangle in Java programming. Logic to find area of a rectangle whose length and width are given in Java programming.

**Required knowledge**

Arithmetic operators, Data types, Basic input/output

**Area of rectangle**

Area of a rectangle is given by the formula -

Area=lw

Where l is length and w is width of the rectangle.

**Logic to find area of rectangle**

Below is the step by step descriptive logic to find area of rectangle -

Input length and width of rectangle. Store it in two different variables say length and width.

Apply formula to calculate rectangle area i.e. area = length * width.

Finally, print the value of area.

**Program to find area of rectangle**

/** * Java program to find area of rectangle */ import java.util.Scanner; class Test { public static void main(String args[]) { float length, width, area; Scanner op=new Scanner(System.in); /* * Input length and width of rectangle */ System.out.print("Enter length of rectangle: "); length=op.nextFloat(); System.out.print("Enter width of rectangle: "); width=op.nextFloat(); /* Calculate area of rectangle */ area = length * width; /* Print area of rectangle */ System.out.println("Area of rectangle = "+area+" sq. units "); } }

**Output:**

Enter length of rectangle: 5 Enter width of rectangle: 3 Area of rectangle = 15.0 sq. units