Android converting String to int

Question

I m simply trying to convert a string that is generated from a barcode scanner to an int so that I can manipulate it by taking getting the remainder to generate a set number of integers   So far I have tried    int myNum   0   try       myNum   Integer parseInt myString getText   toString       catch NumberFormatException nfe          and  Integer valueOf mystr     and   int value   Integer parseInt string      The first one gives me the error  The method getText   is undefined for the type String while the last two don t have any compile errors but the app crashes immediately when those are called   I thought it had to do with my barcode scanning intent method but I put it into the OnCreate and still got the error

User · Answer

barcode often consist of large number so i think your app crashes because of the size of the string that you are trying to convert to int  you can use BigInteger  BigInteger reallyBig   new BigInteger myString

User · Answer

It s already a string  Remove the getText   call   int myNum   0   try       myNum   Integer parseInt myString     catch NumberFormatException nfe         Handle parse error

User · Answer

You just need to write the line of code to convert your string to int    int convertedVal   Integer parseInt YOUR STR

User · Answer

You can not convert to string if your integer value is zero or starts with zero  in which case 1st zero will be neglected   Try change   int NUM null

User · Answer

try this  String t1   name getText   toString    Integer t2   Integer parseInt mynum getText   toString      boolean ins   myDB adddata t1 t2    public boolean adddata String name  Integer price

User · Answer

Use regular expression   String s  your1string2contain3with4number   int i Integer parseInt s replaceAll     D           output  i 1234   If you need first number combination then you should try below code   String s  abc123xyz456   int i   Number NumberFormat getInstance   parse s   intValue     output  i 123

User · Answer

Use regular expression   int i Integer parseInt  hello123  replaceAll     D         int j Integer parseInt  123hello  replaceAll     D         int k Integer parseInt  1h2el3lo  replaceAll     D           output   i 123  j 123  k 123

User · Answer

Change  try       myNum   Integer parseInt myString getText   toString       catch NumberFormatException nfe      to  try       myNum   Integer parseInt myString     catch NumberFormatException nfe

User · Answer

Convert String to Integer    String s    quot fred quot       use this if you want to test the exception below   String s    quot 100 quot    try        the String to int conversion happens here   int i   Integer parseInt s trim           print out the value after the conversion   System out println  quot int i    quot    i     catch  NumberFormatException nfe      System out println  quot NumberFormatException   quot    nfe getMessage

[android] Android: converting String to int

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