java.io: This package contains classes for input/output operations, such as reading and writing files. Example code:
// Reading from a file File file = new File("example.txt"); BufferedReader reader = new BufferedReader(new FileReader(file)); String line = reader.readLine(); reader.close();
// Writing to a file File file = new File("example.txt"); BufferedWriter writer = new BufferedWriter(new FileWriter(file)); writer.write("Hello, world!"); writer.close();
Math.cos: This method returns the cosine of a specified angle in radians. Example code:
double angle = Math.PI/4; // 45 degrees in radians double cos = Math.cos(angle); System.out.println(cos); // prints 0.7071067811865476
Determining package library: java.io is part of the standard Java library, while Math.cos is part of the Math class in the java.lang package, which is also part of the standard Java library.
Java Math.cos - 30 examples found. These are the top rated real world Java examples of java.io.Math.cos extracted from open source projects. You can rate examples to help us improve the quality of examples.