- 技术
- Java Collection遍历：Lambda表达式遍历 forEach
前提条件：jdk1.8之后使用
public class CollectionTest {
public static void main(String
[] args
) {
Collection
<String> ls
= new ArrayList<>();
ls
.add("地球");
ls
.add("宇宙");
ls
.add("火星");
ls
.forEach(ele
->{
System
.out
.println(ele
);
});
ls
.forEach(ele
-> System
.out
.println(ele
));
ls
.forEach(System
.out
::println
);
}
}
补充：遇到多行执行语句 要用大括号
ls
.forEach(ele
->{
System
.out
.println(ele
);
if(){
}...
map
.put
...;
});
Processed:
0.017, SQL:
9
