java try and catch
import java.io.*;
import java.util.Scanner;
public class Test {
public static void main(String args[]) throws Exception {
String input;
int ch1;
float ch2;
String ch3;
Scanner one = new Scanner(System.in);
input = one.nextLine();
try {
ch1 = Integer.parseInt(input);
System.out.println("integer");
return;
} catch (NumberFormatException e) {
}
try {
ch2 = Float.parseFloat(input);
System.out.println("float");
return;
} catch (NumberFormatException e) {
}
try {
ch3 = String.valueOf(input);
System.out.println("String");
} catch (NumberFormatException e) {
}
}
}