把一个字符串的首字母转成大写,其余为小写publicclassString5{publicstaticvoidmain(String[] args) {Stringstr="fsafwgFGRGawqgGWGsdawgQGH";Strings=str.substring(0,1).toUpperCase().concat(str.substring(1).toLowerCase());System.out.
*/ public class StringDemo { public static void main(String[] args) { //方式1 //String(String original):把字符串数据封装成字符串对象 String s1 = new String("hello"); System.out.println("s1:"+s1); System.out.println("---"); //方式2 //String(char[] value):把字符数组的数据封装...
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.print("请输入数组的长度:"); int length = scanner.nextInt(); int[] array = new int[length]; System.out.println("请输入数组的元素:"); for ...
public class MyTest2 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String next = sc.next(); String s = sc.nextLine(); System.out.println("next = " + next + ", s = " + s); /* 前面有空格,在next下不会录入 该nextLine了 next = 前面有空格,...
Java Scanner Class - Learn about the Java Scanner class, its methods, and how to use it for input operations in your Java applications.
The strings that can be parsed as numbers by an instance of this class are specified in terms of the following regular-expression grammar, where Rmax is the highest digit in the radix being used (for example, Rmax is 9 in base 10). ...
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) b = "A"; else if(score >= 70 && score < 85) ...
ScannerClass.string Method Reference Definition Namespace: Dynamics.AX.Application Assembly: Microsoft.Dynamics.AX.Xpp.Support.dll C# publicvirtualstringstring(); Returns String Applies to პროდუქტივერსიები ...
C# 複製 protected virtual void macroDefine(string _text, int _startLine, int _startPos, int _endLine, int _endPos); Parameters _text String _startLine Int32 _startPos Int32 _endLine Int32 _endPos Int32 Applies to 產品版本 Microsoft Dynamics 365 for Finance and Operations Latest ...
publicclassMain { publicstaticvoidmain(String args[]) { String cost ="话费清单:市话费66.66元,长途话费166.66元,短信费16.16元"; Scanner scanner =newScanner(cost); scanner.useDelimiter("[^0123456789.]+");//scanner设置分隔标记 doublesum=0; ...