test if string is float java
public static void main(String[] args) {
String str = "5588";
//check if int
try{
Integer.parseInt(str);
}catch(NumberFormatException e){
//not int
}
//check if float
try{
Float.parseFloat(str);
}catch(NumberFormatException e){
//not float
}
}how to check if string is double or not in java
String decimalPattern = "([0-9]*)\\.([0-9]*)";
String number="20.00";
boolean match = Pattern.matches(decimalPattern, number);
System.out.println(match); //if true then decimal else notCopyright © 2021 Codeinu
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