Java Learning Chapter III 4. Operations

the Java language contains operations: arithmetic operations, assignment operators, comparison operations, logical operations, bitwise operations, type-related operations.

1. Arithmetic operations: The arithmetic operations supported by Java include the subtraction operation, the remainder operation, and the self-addition or self-subtraction operation.

public class Div{public static void Main (String [] args) {Double A = 3.14;int B = 16;double c= a+b; System.out.println (c); System.out.println (A-B); System.out.println (A*B); System.out.println (A/b); System.out.println (a/0.0); System.out.println (a/0); System.out.println (A%B); System.out.println (a%0);d ouble d = a++ +2;double e = ++a + 2; System.out.println ("d=" +d+ "+" e= "+e);}}

　　Java does not provide a exponentiation and root operation, and can be computed by the Java.lang.Math class tool.

　　

public class Math{public static void Main (String [] args) {Double A = 3.2;double B = Math.pow (a,5); System.out.println (b);d ouble C = math.sqrt (a);d ouble d = math.random (); System.out.println (d);d ouble e = Math.sin (a); System.out.println (e);}}

Minus sign can be used to do negative arithmetic.

public class Qiufu{public static void Main (String [] args) {int x = -5;x =-X; SYSTEM.OUT.PRINTLN (x);}}

　　

Java Learning Chapter III 4. Operations