Class 9 ICSE - Java
Class 9th Java aims to empower students by enabling them to build their own applications introducing some effective tools to enable them to enhance their knowledge, broaden horizons, foster creativity, improve the quality of work and increase efficiency.
It also develops logical and analytical thinking so that they can easily solve interactive programs. Students learn fundamental concepts of computing using object oriented approach in one computer language with a clear idea of ethical issues involved in the field of computing
Class 9th java topics includes revision of class 9th, constructors, user-defined methods, objects and classes, library classes , etc.
Library Methods
Java Math pow()
The pow() method returns the result of the first argument raised to the power of the second
argument.
Java Math sqrt()
The sqrt() method returns the square root of the specified number.
Java Math cbrt()
The Java Math cbrt() method returns the cube root of the specified number.
Java Math ceil()
The ceil() method returns the smallest integer that is greater than or equal to the argument. That is,
the
value 3.24 will be rounded to 4.0 which is equal to integer 4.
Java Math floor()
The floor() method returns the largest integer that is less than or equal to the argument. That is, the
value 3.8 will be rounded to 3.0 which is equal to integer 3.
Java Math round()
The round() method rounds the specified value to the closest int or long value and returns it. That is,
3.87
is rounded to 4 and 3.24 is rounded to 3.
Java Math abs()
The abs() method returns the absolute value of the specified value.
Java Math max()
The max() method returns the maximum value among the specified arguments.
Java Math min()
The min() method returns the smaller value among the specified arguments.
Java Math random()
The random() method returns a random value that is greater than or equal to 0.0 and less than
1.0.
