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๐ฆ ๊ณต๋ฃก์ด ๋์!
While(true){์ฝ๋๋ ฅ++;}...1 ๋ณธ๋ฌธ
๋๋ค์(์ต๋ช ํจ์)
(Type variable) -> {execute}
๋๋ณด๊ธฐ
ex)
Collections.sort(list, (Student2 s1, Student2 s2) -> {return (s1.number - s2.number);});
System.out.println(list);
forEach + ๋๋ค์
for(String s : list){
System.out.println(s);
}
list.forEach(s->System.out.println(s));
Integer.toString(n).chars().sorted().forEach(c -> res = Character.valueOf((char)c) + res);
- forEach์ ๊ฒฝ์ฐ์๋ ๋ฐฐ์ด์ ์๋๋ค.
3ํญ ์ฐ์ฐ์
(์กฐ๊ฑด์) ? A : B
๋๋ณด๊ธฐ
ex)
result = (num%2 == 0) ? "์ง์" : "ํ์";
result = (num%3 == 0) ? "๋๋จธ์ง 0" : ((num%3 == 1) ? "๋๋จธ์ง 1" : "๋๋จธ์ง 2");
๋ฐ์ํ
'Development > Java' ์นดํ ๊ณ ๋ฆฌ์ ๋ค๋ฅธ ๊ธ
Mybatis...2 (0) | 2021.12.15 |
---|---|
JDBC (0) | 2021.12.13 |
Collection framework Set/Map (0) | 2021.12.12 |
Java ์ฝ๋๋ฆฌ๋ทฐ...1 forEach (2) | 2021.12.11 |
Java ํด๋์ค ๋ฐ ๋ฉ์๋ ์ ๋ฆฌ (0) | 2021.12.08 |
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