FilesExpand file tree

 master

/

checkFirstCharOfStr.java

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

16 lines (14 loc) · 520 Bytes

 master

/

checkFirstCharOfStr.java

Copy path

Top

File metadata and controls

• Code
• Blame

16 lines (14 loc) · 520 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

package String;

public class checkFirstCharOfStr {

public static void main(String[] args) {

String str = "helloo777";

Boolean flag1 = str.substring(0, 1).matches("[0-9]");

//[0-9] Regular expression to match the number between 0-9.

//we can also use \\d to to check every digit

if(flag1){

System.out.println("First Character is a number..!");

}else{

System.out.println("First character is not a number..!");

}

}

}