How to realize string concatenation, integer addition and floating point addition by Java

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Write a Java application program, read two strings from the keyboard, and overload three functions to realize the concatenation of the two strings, integer addition and floating point addition, and output the results. To handle the exception, prompt the user to package zyy.wxt.demo the input string that does not meet the requirements

Import java.util.Scanner;public class overload {public static void main (String [] args) {String S1 = null, S2 = null; Scanner sc = new Scanner (System.in); try {System.out.println ("Please enter the first string:"); S1 = sc.next (); System.out.println ("Please enter the second string:") S2 = sc.next ();} catch (Exception e) {System.out.println (e.getMessage ());} int i1 = Integer.parseInt (S1); int i2 = Integer.parseInt (S2); float F1 = Float.parseFloat (S1); float f2 = Float.parseFloat (S2); System.out.println (F1) System.out.println ("splicing result:" + strAdd (S1, S2)); System.out.println ("Integer result:" + strAdd (i1, i2)); System.out.println ("floating point result:" + strAdd (F1, f2));} public static String strAdd (String str1, String str2) {return str1 + str2;} public static int strAdd (int a, int b) {return a + b } public static String strAdd (float f11, float f22) {return String.valueOf (f11 + f22);}}

Running result

Please enter the first string:

one hundred and thirty two

Please enter the second string:

three hundred and twenty one

132.0

Stitching result: 132321

Integer result: 453

Floating point result: 453.0

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