[开发工具]idea 实用小功能

idea 实用小功能

1、简单自动导包（有多个包则需要选择）

2、代码自动补全

2.1、if

boolean flag = false;

        flag.if

        if (flag) {

        }

 flag.else
            
        if (!flag) {
            
        }

2.2、for\while

 fori
                
        for (int i = 0; i < ; i++) {
            
        }

flag.while

        while (flag) {
            
        }

2.3、String

 new String().var
        
        String string = new String();

2.4、return

public int test(){
        
        10.return
        
        return 10;
    }

2.5、sout

 "Hello World".sout

        System.out.println("Hello World");

2.6、try

int mun=0/10.try

        try {
            int num= 0/10;
        } catch (Exception e) {
            e.printStackTrace();
        }

2.7、list

List<Integer> list = Arrays.asList(1,2,3,4,5,6,7,8,9,);

        list.for

        for (Integer integer : list) {

        }

        list.fori

        for (int i = 0; i < list.size(); i++) {

        }

        list.forr
        
        for (int i = list.size() - 1; i >= 0; i--) {
            
        }