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题解 | #统计字符串中字母出现次数#

import java.util.Scanner; public class Main { public static void main(String[] args) { String string = "H e l l o ! n o w c o d e r"; ...

Java

2021-12-23

0 254

题解 | #动态字符串#

import java.util.*; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String...

Java

2021-12-23

0 302

题解 | #创建单例对象#

public class Main { public static void main(String[] args) { Singleton s1 = Singleton.getInstance(); Singleton s2 = Singleton.get...

Java

2021-12-23

0 395

题解 | #实现接口#

import java.util.Scanner; public class Main { public static void main(String[] args) { Comparator comparator = new ComparatorImpl(); ...

Java

2021-12-20

0 400

题解 | #实现抽象方法#

import java.util.Scanner; public class Main { public static void main(String[] args) { // Sub是需要你定义的子类 Base base = new Sub(); ...

Java

2021-12-20

0 284

题解 | #类型判断#

import java.util.Scanner; public class Main { public static void main(String[] args) throws Exception { Scanner scanner = new Scanner(Sy...

Java

2021-12-20

0 260

题解 | #定义打印方法#

import java.util.Scanner; public class Main { public static void main(String[] args) throws Exception { Scanner scanner = new Scanner(Sy...

Java

2021-12-20

8 542

题解 | #重写计算逻辑#

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); ...

Java

2021-12-20

0 239

题解 | #补全构造方法#

import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); ...

Java

2021-12-20

0 220

题解 | #验证年龄#

import java.util.Scanner; public class Main { public static void main(String[] args) { Person p = new Person(); Scanner scanner ...

Java

2021-12-18

2 348