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Math Class Function and Constant

Math Class all Function used in a program

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Math Class all Function used in a program
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//wap to uses all method of math class uses in this program


public class MathMethod
{
	public static void main(String[] args) 
	{
		int i = 7;
		int j = -9;
		double x = 72.3;
		double y = 0.34;

		System.out.println(Math.PI); 

		System.out.println(Math.E);

		System.out.println("i is " + i); 
		System.out.println("j is " + j);
		System.out.println("x is " + x); 
		System.out.println("y is " + y);

		// The absolute value of a number is equal to 
		// the number if the number is positive or 
		// zero and equal to the negative of the number 
		// if the number is negative.

		System.out.println("|" + i + "| is " + Math.abs(i)); 
		System.out.println("|" + j + "| is " + Math.abs(j));
		System.out.println("|" + x + "| is " + Math.abs(x)); 
		System.out.println("|" + y + "| is " + Math.abs(y));

		// Truncating and Rounding functions
		// You can round off a floating point number 
		// to the nearest integer with round()

		System.out.println(x + " is approximately " + Math.round(x)); 
		System.out.println(y + " is approximately " + Math.round(y)); 

		// The "ceiling" of a number is the 
		// smallest integer greater than or equal to
		// the number. Every integer is its own 
		// ceiling.

		System.out.println("The ceiling of " + i + " is " + Math.ceil(i)); 
		System.out.println("The ceiling of " + j + " is " + Math.ceil(j));
		System.out.println("The ceiling of " + x + " is " + Math.ceil(x)); 
		System.out.println("The ceiling of " + y + " is " + Math.ceil(y));

		// The "floor" of a number is the largest 
		// integer less than or equal to the number.
		// Every integer is its own floor.

		System.out.println("The floor of " + i + " is " + Math.floor(i)); 
		System.out.println("The floor of " + j + " is " + Math.floor(j));
		System.out.println("The floor of " + x + " is " + Math.floor(x)); 
		System.out.println("The floor of " + y + " is " + Math.floor(y));

		// Comparison operators
		// min() returns the smaller of the two arguments you pass it

		System.out.println("min(" + i + "," + j + ") is " + Math.min(i,j)); 
		System.out.println("min(" + x + "," + y + ") is " + Math.min(x,y)); 
		System.out.println("min(" + i + "," + x + ") is " + Math.min(i,x)); 
		System.out.println("min(" + y + "," + j + ") is " + Math.min(y,j)); 

		// There's a corresponding max() method 
		// that returns the larger of two numbers 

		System.out.println("max(" + i + "," + j + ") is " + Math.max(i,j)); 
		System.out.println("max(" + x + "," + y + ") is " + Math.max(x,y)); 
		System.out.println("max(" + i + "," + x + ") is " + Math.max(i,x)); 
		System.out.println("max(" + y + "," + j + ") is " + Math.max(y,j)); 

		// The Math library defines a couple 
		// of useful constants:

		System.out.println("Pi is " + Math.PI); 
		System.out.println("e is " + Math.E); 

		// Trigonometric methods
		// All arguments are given in radians
		// Convert a 45 degree angle to radians

		double angle = 45.0 * 2.0 * Math.PI/360.0;
		System.out.println("cos(" + angle + ") is " + Math.cos(angle)); 
		System.out.println("sin(" + angle + ") is " + Math.sin(angle)); 

		// Inverse Trigonometric methods
		// All values are returned as radians

		double value = 0.707;
		System.out.println("acos(" + value + ") is " + Math.acos(value)); 
		System.out.println("asin(" + value + ") is " + Math.asin(value)); 
		System.out.println("atan(" + value + ") is " + Math.atan(value)); 

		// Exponential and Logarithmic Methods
		// exp(a) returns e (2.71828...) raised 
		// to the power of a. 

		System.out.println("exp(1.0) is " + Math.exp(1.0));
		System.out.println("exp(10.0) is " + Math.exp(10.0));
		System.out.println("exp(0.0) is " + Math.exp(0.0));

		// log(a) returns the natural 
		// logarithm (base e) of a. 

		System.out.println("log(1.0) is " + Math.log(1.0));
		System.out.println("log(10.0) is " + Math.log(10.0));
		System.out.println("log(Math.E) is " + Math.log(Math.E));

		// pow(x, y) returns the x raised 
		// to the yth power.

		System.out.println("pow(2.0, 2.0) is " + Math.pow(2.0,2.0));
		System.out.println("pow(10.0, 3.5) is " + Math.pow(10.0,3.5));
		System.out.println("pow(8, -1) is " + Math.pow(8,-1));

		// sqrt(x) returns the square root of x.
		for (i=0; i < 10; i++)
		{
		System.out.println("The square root of " + i + " is " + Math.sqrt(i));
		}

		// Finally there's one Random method 
		// that returns a pseudo-random number 
		// between 0.0 and 1.0;

		System.out.println("Here's one random number: " + Math.random()); 
		System.out.println("Here's another random number: " + Math.random());
	}
}

output :

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