java【三】之键盘输入以及acm的多组输入——详细解说

最新推荐文章于 2024-11-06 11:31:39 发布

原创最新推荐文章于 2024-11-06 11:31:39 发布 · 871 阅读

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#java #开发语言

}

// 输出结果：

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=64442 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

IMISSYOUQIUQIU

I M I S S Y O U Q I U Q I U

Process finished with exit code 0

再为大家验证next与nextLine的区别：

// next();

import java.util.Scanner;

public class test {

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

String str=input.next();

char[] array=str.toCharArray(); //使用toCharArray();可以将字符串转换为字符数组

int len=str.length();

for(int i=0;i<len;i++)

{

System.out.print(array[i]+" ");

}

System.out.print(“\n”);

}

// 输出结果：

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=64502 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

I LOVE CHINA

Process finished with exit code 0

// nextLine();

import java.util.Scanner;

public class test {

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

String str=input.nextLine();

char[] array=str.toCharArray(); //使用toCharArray();可以将字符串转换为字符数组

int len=str.length();

for(int i=0;i<len;i++)

{

System.out.print(array[i]);

}

System.out.print(“\n”);

}

// 输出结果：

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=64664 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

I miss you

Process finished with exit code 0

nextLine（）；

import java.util.Scanner;

public class test {

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

String str=input.nextLine();

char[] array=str.toCharArray(); //使用toCharArray();可以将字符串转换为字符数组

int len=str.length();

for(int i=0;i<len;i++)

{

System.out.print(array[i]);

}

System.out.print(“\n”);

int t=input.nextInt();

System.out.println(t);

}

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=64921 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

球球，一路有你，真好！

20200830

Process finished with exit code 0

其他类型：

import java.util.Scanner;

public class test {

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

String str=input.nextLine();

char[] array=str.toCharArray(); //使用toCharArray();可以将字符串转换为字符数组

int len=str.length();

for(int i=0;i<len;i++)

{

System.out.print(array[i]);

}

System.out.print(“\n”);

int t=input.nextInt();

System.out.println(t);

double a=input.nextDouble();

System.out.println(a);

float m=input.nextFloat();

System.out.println(m);

}

// 输出

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=65054 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

遇见你真好！@qiuqiu

20190830

11.21

11.35

Process finished with exit code 0

acm之多组输入：

acm之多组输入：

// 多组输入之字符串

import java.util.Scanner;

public class test {

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

while(input.hasNext())

{

String a=input.nextLine();

String b=input.nextLine();

System.out.println(a+b);

}

// 输出

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=65305 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

我们跨过山河

在湖中大相遇真好

我们跨过山河在湖中大相遇真好

i miss you

i love china

i miss you i love china

// 多组输入之实数

import java.util.Scanner;

public class test {

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

while(input.hasNext())

{

int a=input.nextInt();

double b=input.nextDouble();

System.out.println(a+" "+b);

}

// 输出结果

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=65414 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

20190830

8.30

2190830 8.3

15115

4156.262

15115 4156.262

acm之T组输入：

// 实型数据之T组输入

import java.util.Scanner;

public class test {

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

int t=input.nextInt();

while(t>0)

{

int a=input.nextInt();

double b=input.nextDouble();

System.out.println(a+" "+b);

t–;

}

// 输出结果

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=65482 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

20190830

8.30

20190830 8.3

155 2.3

45 926.31

15 2.3

151 3.2

Process finished with exit code 0

// 字符串之T组输入

import java.util.Scanner;

public class test {

public static void main(String[] args)

{

Scanner input=new Scanner(System.in);

int t=input.nextInt();

while(t>0)

{

String a=input.next();

System.out.println(a);

t–;

}

// 输出：

D:\eclipse\jdk\bin\java.exe -Didea.launcher.port=49263 “-Didea.launcher.bin.path=D:\java_idea\IntelliJ IDEA 2019.1\bin” -Dfile.encoding=UTF-8 -classpath “D:\java_idea\out\production\java_idea_source;D:\java_idea\IntelliJ IDEA 2019.1\lib\idea_rt.jar” com.intellij.rt.execution.application.AppMainV2 test

在最美的年纪