3. Java Scanner Regular Expression Example Let’s say we have a string source and we want to process only integers present in that. We can use the scanner with the non-digit regex to get only integers as tokens
Namespace: Java.Util Assembly: Mono.Android.dll A simple text scanner which can parse primitive types and strings using regular expressions.C# 複製 [Android.Runtime.Register("java/util/Scanner", DoNotGenerateAcw=true)] public sealed class Scanner : Java.Lang.Object, IDisposable, Java.Interop...
import java.util.Scanner; class Main { public static void main(String[] args) { Scanner myObj = new Scanner(System.in); System.out.println("Enter name, age and salary:"); // String input String name = myObj.nextLine(); // Numerical input int age = myObj.nextInt(); double salary...
1 首先，创建一个class 2 创建一个main方法，导入java.util.Scanner(一定要写在package下面！！！）3 输入以下代码，注释部分详细说明了每一行代码的用途。package com.Test;import java.util.Scanner;public class MyClass {public static void main(String arg[]){System.out.println("请输入学科"); //输出...
$ javacScannerDemo.java $ javaScannerDemonext方式接收:runoob com输入的数据为:runoob 可以看到 com 字符串并未输出,接下来我们看 nextLine。 使用nextLine 方法: ScannerDemo.java 文件代码: importjava.util.Scanner;publicclassScannerDemo{publicstaticvoidmain(String[]args){Scannerscan=newScanner(System.in);...
import java.util.Scanner; public class Test03 { public static void main(String[] args){ Scanner s = new Scanner(System.in); System.out.println("Please input your score:"); int score = s.nextInt(); String b; if(score >= 85) ...
// 1.导包importjava.util.Scanner;publicclassMyBlog{publicstaticvoidmain(String[]args){// 2.创建Scanner sc=newScanner(System.in);// 3.使用String str=sc.next();System.out.println("我们输入了一个字符串形的:"+str);int num=sc.nextInt();System.out.println("我们输入了一个整数形的:"+num...
import java.util.Scanner;public class ScannerDemo { public static void main(String[] args) { Scanner scan = new Scanner(System.in);// 从键盘接收数据 // next方式接收字符串 System.out.println("next方式接收：");// 判断是否还有输入 if (scan.hasNext()) { String str1 = scan.next();System...
ScannerDemo.java 文件代码: import java.util.Scanner;public class ScannerDemo {public static void main(String[] args) {Scanner scan = new Scanner(System.in);// 从键盘接收数据// nextLine方式接收字符串System.out.println("nextLine方式接收:");// 判断是否还有输入if (scan.hasNextLine()) {String ...
import java.util.Arrays; public class MyScanner { public static void main(String[] args) { //创建对象 Scanner sc = new Scanner(System.in); System.out.println("输入数据:"); //多行输入 int n = sc.nextInt(); int m = sc.nextInt(); ...