how to check integer in string in java code example
Example 1: java test if a string is a int
public static boolean isInt(String str) {
try {
@SuppressWarnings("unused")
int x = Integer.parseInt(str);
return true;
} catch (NumberFormatException e) {
return false;
}
}
Example 2: check if the given string is a number
static private boolean isMyNumber(String s){
try{
Integer.parseInt(s);
return true;
}catch (Exception e){
return false;
}
}
Example 3: java check if int
float number = 20;
if(number%1 == 0){
println("It is an integer");
} else {
println("It is not an integer");
}