java test if a string is a int
public static boolean isInt(String str) {
try {
@SuppressWarnings("unused")
int x = Integer.parseInt(str);
return true; //String is an Integer
} catch (NumberFormatException e) {
return false; //String is not an Integer
}
}check if string is decimal java
Scanner in = new Scanner(System.in);
String ip1 = in.nextLine();
if( ip1.matches("^\\d+\\.\\d+") )
System.out.println(ip1+"----is a decimal number");
else
System.out.println(ip1+"----is a not decimal number");Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
