Areas of Different Shapes

import java.util.*;
class Area
{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		System.out.println("Hello, In this program you can find the different shape's area");
		System.out.println("Select your choice");
		System.out.println("1. Area of Square");
		System.out.println("2. Area of Rectangle");
		System.out.println("3. Area of Circle");
		System.out.println("4. Area of Triangle");
		System.out.println("5. Exit");
		int choice = sc.nextInt();
		switch(choice)
		{
			case 1: 
				areaSquare();
				break;
			case 2: 
				areaRectangle();
				break;
			case 3: 
				areaCircle();
				break;
			case 4: 
				areaTriangle();
				break;
			case 5:
				exit();
				break;
			    default:
				System.out.println("Wrong choice");
			
		}
	}


	static void areaSquare()
	{
		System.out.println("You have selected Area of Square\nEnter square side :");
		Scanner c = new Scanner(System.in);
		float x = c.nextFloat();
		float result = x*x;
		System.out.println("The are of square for given data is:"+ result+"sq.");
	}

	static void areaRectangle()
	{
		System.out.println("You have selected Area of Rectangle\nEnter length and breath :");	
		Scanner sc = new Scanner(System.in);
		float x = sc.nextFloat();
		float y = sc.nextFloat();
		float result = x*y;
		System.out.println("the area of rectangle is " + result+"sq.");
	}

	static void areaCircle()
	{
		System.out.println("You have selected Area of Circle"+"sq.");
		float pi = 22/7;
		Scanner sc = new Scanner(System.in);
		System.out.println("Enter radius of circle");
		float x = sc.nextFloat();
		float result = pi*(x * x);
		System.out.println("The area of circle for given data is:"+ result+"sq.");
	}

	static void areaTriangle()
	{   Scanner sc = new Scanner(System.in);
		System.out.println("You have selected Area of Triangle\nEnter height and base of triangle :");
		float x =sc.nextFloat();
		float y = sc.nextFloat();
		float result = 1/2*(x*y);
		System.out.println("The area of triangle is "+ result+"sq.");
	}
	static void exit()
	{
	    System.out.println("Good bye user");
	}

}