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algorithm
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algorithm
/
algorithm
/
src
/
level1
/
MaskingNumber.java
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master
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algorithm
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algorithm
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src
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level1
/
MaskingNumber.java
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/*핸드폰 번호 가리기
문제 설명
프로그래머스 모바일은 개인정보 보호를 위해 고지서를 보낼 때 고객들의 전화번호의 일부를 가립니다.
전화번호가 문자열 phone_number로 주어졌을 때, 전화번호의 뒷 4자리를 제외한 나머지 숫자를 전부 *으로 가린 문자열을 리턴하는 함수, solution을 완성해주세요.
제한 조건
s는 길이 4 이상, 20이하인 문자열입니다.
입출력 예
phone_number return
01033334444 *******4444
027778888 *****8888*/
package
level1
;
public
class
MaskingNumber
{
public
static
void
main
(
String
[]
args
) {
// TODO Auto-generated method stub
MaskingNumber
mn
=
new
MaskingNumber
();
System
.
out
.
println
(
mn
.
solution
(
"01044140668"
));
}
public
String
solution
(
String
phone_number
) {
String
answer
=
""
;
for
(
int
i
=
0
;
i
<
phone_number
.
length
()-
4
;
i
++) {
answer
+=
"*"
;
}
answer
+=
phone_number
.
substring
(
phone_number
.
length
()-
4
,
phone_number
.
length
());
return
answer
;
}
}
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