Answers for "how to check whether a string is integer or not in java"

java how to check string is number

public static boolean isNumeric(String strNum) {
    if (strNum == null) {
        return false;
    }
    try {
        double d = Double.parseDouble(strNum);
    } catch (NumberFormatException nfe) {
        return false;
    }
    return true;
}

how to check if number is integer in java

if(x == (int)x){
 println("x is an integer");
}