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CodexRitik
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Number Methods In Java
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‎src/NumberMethods.java‎

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public class NumberMethods {
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public static void main(String[] args) {
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/* Number Methods */
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/*1.xxxValue()
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converts the value of this number object to
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the xxx datatype and returns it.*/
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System.out.println("xxxValue() Method:");
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Integer x = 5;
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System.out.println(x.byteValue());
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System.out.println(x.doubleValue());
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/*2.compareTo()
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compares the Number object to the argument
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if the arguments is equal, returns 0; if less then returns -1
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if greater then returns 1.
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*/
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System.out.println("compareTo() Method:");
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Integer t = 10;
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System.out.println(t.compareTo(5));
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Float fl = 3.14f;
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System.out.println(fl.compareTo(3.14f));
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/*3.equals() boolean method
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check the number object is equal or not to the argument
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*/
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System.out.println("equals() Method:");
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Integer a = 10;
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Integer Y = 20;
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Short y = 20;
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System.out.println(a.equals(Y));
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System.out.println(y.equals(Y));
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/*4.valueOf() static method it also takes string argument and radix
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returns the Integer Objects holding the value of specified primitive
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*/
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System.out.println("valueOf() Method:");
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int A = 16;//Hexadecimal base
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Integer X = Integer.valueOf(5);
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Integer b = Integer.valueOf("444",A);
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Double c = Double.valueOf(5);
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System.out.println(X);
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System.out.println(b);
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System.out.println(c);
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/*5.toString()
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returns a String Object representing the value of a specified int or Integer
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*/
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System.out.println("toString() Method:");
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Integer d = 10;
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System.out.println(d.toString());
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System.out.println(Integer.toString(400,8));
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/*6.parseInt() is also used for CommandLine Input
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this method is used to get the primitive data type of a certain String
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*/
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System.out.println("parseInt() Method:");
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int xx = Integer.parseInt("10");
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double cc = Double.parseDouble("5");
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int bb = Integer.parseInt("222",8);
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System.out.println(xx);
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System.out.println(cc);
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System.out.println(bb);
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/*7.abs()
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returns the absolute value of the argument
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*/
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System.out.println("abs() Method:");
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Integer ff = -8;
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double h = -100;
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float k = -90;
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System.out.println(Math.abs(ff));
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System.out.println(Math.abs(h));
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System.out.println(Math.abs(k));
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/*8.ceil()
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returns the smallest integer that is greater then or equal to the
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argument,returned in double.
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*/
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System.out.println("ceil() Method:");
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double dd = -100.675;
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float fh = -90;
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System.out.println(Math.ceil(dd));
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System.out.println(Math.ceil(fh));
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/*9.floor()
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returns the largest integer that is less then or equal to the argument,
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returned as double.*/
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System.out.println("floor() Method:");
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double du = -100.675;
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float fll = -90;
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System.out.println(Math.floor(du));
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System.out.println(Math.floor(fll));
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/*10.rint()
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returns the integer that is closest in value to the argument ,
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returned as the double.
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*/
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System.out.println("rint() Method:");
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double o = 100.675;
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double op = 100.500;
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System.out.println(o);
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System.out.println(op);
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/*11.round()
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returns the closest long or int ,as indicated by the methods return type
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to the argument.*/
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double n = 100.675;
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double e = 1000.576;
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float fx = 99.1f;
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System.out.println(n);
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System.out.println(e);
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System.out.println(fx);
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/*12.min()
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returns the smaller of the two argument.*/
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System.out.println("min() Method:");
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System.out.println(Math.min(5,6));
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System.out.println(Math.min(3.14,2.24));
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/*13.max()
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returns the larger of the two arguments.*/
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System.out.println("max() Method:");
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System.out.println(Math.max(9,5));
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System.out.println(Math.max(3.12,1.234));
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/*14.exp()
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returns the base of the natural logarithms, e, to the power of the argument
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*/
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System.out.println("exp() method:");
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double fj = 11.0464;
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double gg = 2.76;
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System.out.printf("The Value of e is %.4f%n",Math.E);
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System.out.println(Math.exp(x));
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/*15.log()
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returns the natural logarithms of the argument
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*/
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System.out.println("log() Method:");
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double x1 = 11.635;
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double y1 = 2.76;
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System.out.printf("The value of e is %.4f%n", Math.E);
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System.out.println(Math.log(x1));
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/*16.pow()
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returns the value of the first argument raised to the power of the second
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argument.*/
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System.out.println("pow() Method:");
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double xr = 11.635;
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double yr = 2.76;
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System.out.printf("The value of e is %.4f%n", Math.E);
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System.out.println(Math.pow(xr, yr));
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/*17.sqrt()
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returns the square root of the argument*/
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System.out.println("sqrt() Method:");
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System.out.printf("The value of e is %.4f%n", Math.E);
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System.out.println(Math.sqrt(x));
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/*18.sin()
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returns the sine of the specified double value*/
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System.out.println("sin() Method:");
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double degrees = 45.0;
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double radians = Math.toRadians(degrees);
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System.out.format("The value of pi is %.4f%n", Math.PI);
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System.out.format("The sine of %.1f degrees is %.4f%n", degrees, Math.sin(radians));
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/*19.cos()
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returns the cosine of the double value*/
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System.out.println("cos() Method:");
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System.out.format("The value of pi is %.4f%n", Math.PI);
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System.out.format("The cosine of %.1f degrees is %.4f%n", degrees, Math.cos(radians));
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/*20.tan()
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returns the tangent of the double value*/
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System.out.println("tan() Method:");
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System.out.format("The value of pi is %.4f%n", Math.PI);
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System.out.format("The tangent of %.1f degrees is %.4f%n", degrees, Math.tan(radians));
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/*21.asin()
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returns the arcsine of the specified double value*/
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System.out.println("asin() Method:");
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System.out.format("The value of pi is %.4f%n", Math.PI);
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System.out.format("The arcsine of %.4f is %.4f degrees %n", Math.sin(radians), Math.toDegrees(Math.asin(Math.sin(radians))));
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/*22.acos()
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returns the arccosine of the double value
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23.atan()
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returns the arctangent of the double value. similarly you may use this*/
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/*24.atan2()
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converts rectangular coordinates (x,y) to polar coordinate (r,theta)
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and returns theta.*/
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System.out.println("atan2() Method:");
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double xz = 45.0;
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double yz = 30.0;
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System.out.println( Math.atan2(xz, yz) );
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/*25.toDegrees()
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converts the argument to degrees*/
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System.out.println("toDegrees() method:");
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System.out.println( Math.toDegrees(xz) );
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System.out.println( Math.toDegrees(yz) );
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/*26.toRadians()
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converts the arguments to radians*/
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System.out.println("toRadians() Method:");
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System.out.println( Math.toRadians(xz) );
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System.out.println( Math.toRadians(yz) );
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/*27.random()
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returns a random number.
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*/
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System.out.println("random() Method:");
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System.out.println( Math.random() );
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System.out.println( Math.random() );
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}
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}

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