java operator

 

Operator

1) multiplication

use '*'

ex) 5 * 5 = 25

 

2) addition

use '+'

ex) 5 + 5 = 10

 

3) subtraction

use '-'

ex) 5 - 5 = 0

 

4) modulus

ex) 10 % 3 = 1

 

The number operated on by an operator is called an operand. A literal is a specific data value that appears directly in the source code.

if you want to practice hands-on. use jshell to practice it.

if you don't know how to use jshell, then check this link. 

https://just-do-it-man.tistory.com/173#google_vignette

JShell

 

 

 

 

 

 

in Java, when you perform operations with integers, the result is an integer. However, when you perform operations with floating-point numbers, the result is a floating-point number.

 

In Java, when you perform arithmetic operations with integer operands, the result is an integer. For example:

int a = 10; 
int b = 3; 
int result = a / b; // result is 3, not 3.33

In this case, a and b are integers, so the result of the division is also an integer, and any fractional part is discarded.

On the other hand, when you perform arithmetic operations with floating-point operands, the result is a floating-point number. For example:

double x = 10.0; 
double y = 3.0; 
double result = x / y; // result is 3.3333333333333335

Here, x and y are floating-point numbers (doubles), so the result of the division is also a floating-point number, preserving the fractional part.

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hands-on 실습의, '직접 해보는
thereby 그렇게 함으로써
have documented 과거부터 현재까지 특정 사실이나 정보를 기록하거나 문서화해왔다
by the end of this course 이 과정이 끝날 즈음에
pursue "추구하다", "쫓다", "추진하다
java object oriented programming 객체지향 프로그래밍(OOP)
fundamental 근본[본질]적인, 핵심적인,기본 원칙[법칙], 핵심
do a deep dive 깊이 있는 조사를 하다
multiplication 곱셈
break problem 문제를 깨다
Break it down "세분화하다", "단계별로 나누다", "자세히 설명하다
and so on 기타등등
cakewalk 식은 죽 먹기
Terminology 특정 분야에서 사용되는 전문 용어
operator 연산자
operand 피연산자
subtraction 빼기