Page 58 - CA_Blue( J )_Class10
P. 58
Arithmetical Statement: When an expression is assigned to a variable, then it is called an arithmetical statement. For
example: c = a * b and p = 2 * (l + b).
Conversion of Mathematical Expression to Java Expression
Mathematical Expression Java Expression
ab+bc+ca a*b+b*c+c*a
2πr 2 2*22.0/7.0*r*r
r p*Math.pow((1+r/100.0),n)-p
n
p(1+ ) - p
100
a + b + c + 2ab + 2ac + 2bc a*a +b*b + c*c + 2*a*b + 2*a*c + 2*b*c
2
2
2
ad + bc (a*d+b*c)/(b*d)
bd
3 Math.sqrt(3)/4.0 * side * side
4 × side2
Let us study the different forms of operators in detail.
4.2 FORMS OF OPERATORS
There are mainly three forms of operators in Java:
• Unary Operator: An operator that works with only one operand is called a unary operator. Some of the unary
operators are a++ and b--. Where a and b are the operands, ++ and -- are the operators.
• Binary Operator: An operator that works with two operands is called a binary operator. Some of the binary operators
are a + b , a / b. Where a and b are the operands, + and / are the operators.
• Ternary Operator: An operator that works with three operands or expressions is called a ternary operator. It is also
called conditional operator because the value assigned to a variable depends upon a logical expression or a condition.
Syntax:
variable = Expression1 ? Expression2: Expression3
Example:
int fno = 20, sno = 10, max;
max = (fno > sno) ? fno : sno;
Program 1: To use all the three forms of operators in Java.
5656 Touchpad Computer Applications-X

