IDEA常用的 Live Templates和 Postfix Completion

I Live Templates Setting

in
if (Objects.isNull($VAR$)) {
    return null;
}$END$

nn
if (Objects.nonNull($VAR$)) {
    $END$;
}

an
if (ObjectUtils.anyNull($VAR$, $VAR1$)) {
    return null;
}$END$

ib
if (StringUtils.isBlank($VAR$)) {
    return null;
}$END$

inb
if (StringUtils.isNotBlank($VAR$)) {
    $END$;
}

cie
if (CollectionUtils.isEmpty($VAR$)) {
    return Collections.emptyList();
}$END$

cine
if (CollectionUtils.isNotEmpty($VAR$)) {
    $END$;
}

bfr
BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
String str = bf.readLine();
int num = Integer.parseInt(bf.readLine());
bf.close();

sb
StringBuilder sb = new StringBuilder();

循环

fori

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

.fori

.forr

itar

        for (int i = 0; i < args.length; i++) {
            String arg = args[i];
            
        }

ritar

        for (int i = args.length - 1; i >= 0; i--) {
            String arg = args[i];
            
        }

itli

        for (int i = 0; i < dishes.size(); i++) {
            Dish dish = dishes.get(i);
            dishes 为最近的变量
        }

I

        for (Object o :) {
            
        }

iter

        for (Dish dish : dishes) {
            dishes 为最近的变量
        }

.iter / .for Iterates over an enumerable collection.

itco

        for (Iterator<Dish> iterator = dishes.iterator(); iterator.hasNext(); ) {
            Dish next = iterator.next();
            dishes 为最近的变量
        }

itit

        while (iterator.hasNext()) {
            Object next = iterator.next();
            
        }

iten

        while (enumeration.hasMoreElements()) {
            Object nextElement = enumeration.nextElement();
            
        }

.while

public class Foo {
    void m(boolean x) {
        x.while
        return;
    }
}

public class Foo {
    void m(boolean x) {
        while (x) {

        }
        return;
    }
}

修饰符等关键字

prsf

private static final 

psf

public static final 

psfi

public static final int 

psfs

public static final String 

St

String 

thr

throw new 

.par Parenthesizes an expression.

输出相关

serr

System.err.println();

.serr

serrc

System.err::println

souf

System.out.printf("");

.souf

sout

System.out.println();

.sout

soutc

System.out::println

soutm

System.out.println("Test.main");

soutp

System.out.println("args = " + Arrays.deepToString(args));

soutv

System.out.println("dishes = " + dishes);

soutv

数学相关

mn

         = Math.min(, );

mx

         = Math.max(, );

锁相关

RL

        .readLock().lock();
        try {
            
        } finally {
            .readLock().unlock();
        }

WL

        .writeLock().lock();
        try {
            
        } finally {
            .writeLock().unlock();
        }

线程相关

C

        Callable<Object> callable = new Callable<Object>() {
            public Object call() throws Exception {

                
            }
        };

.synchronized

null 等条件判断相关

ifn

        if (dishes == null) {
            dishes 为最近的变量
        }

.null Checks that an expression is null.

inn

        if (dishes != null) {
            dishes 为最近的变量
        }

.nn / .notnull Checks that an expression is not null.

lazy

        if (dishes == null) {
            dishes = new List<Dish>();
        }

！ / .not Negates a boolean expression.

.if Checks that a boolean expression is true.

.else Checks that a boolean expression is false.

集合数组转换

toar

dishes.toArray(new Object[0])

lst

        args[args.length - 1]

StringTokenizer

ittok

        for (StringTokenizer stringTokenizer = new StringTokenizer(); stringTokenizer.hasMoreTokens(); ) {
            String s = stringTokenizer.nextToken();
            
        }

Java多态

inst

        if (dishes instanceof Object) {
            Object o = (Object)dishes;
            dishes 为最近的变量
        }

.castvar Creates a new variable for the expression with type casting.

.inst / .instanceof Surrounds an expression with instanceof.

.cast Surrounds an expression with a cast.

方法相关

main

        public static void main (String[]args){
            
        }

psvm

        public static void main (String[]args){
            
        }

geti

        public static Test getInstance () {
            return getInstance;
        }

.new Inserts a new call for a class.

.arg Wraps an object with a function call.

.field Introduces a field for an expression. (有问题)

实际会这样

.return

.switch

toCompletable (IDEA 显示有问题)

toFlowable

.toFlux

.toMaybe

.toMono

.toObservable

.toSingle

String 方法相关

.format Creates a String.format call.

.val

.varl

.var

异常

.throw

.try

.twr

public class Foo {
    void m() {
        getStream().twr
    }

    AutoCloseable getStream()
    {
        return null;
    }
}

public class Foo {
    void m() {
        try (AutoCloseable stream = getStream()) {

        } catch (Exception e) {
        }
    }

    AutoCloseable getStream()
    {
        return null;
    }
}

测试相关

.assert Creates an assertion from a boolean expression.

.test / .testN

java8

.lambda Surrounds an expression with a lambda.

.opt Creates an Optional object.

.reqnonnull Wraps an object with Objects.requireNonNull.

.stream