How to Extract Number From A String In Java With Example?

How to Extract Number From A String In Java With Example?

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package com.softwaretestingblog.programs;
import java.util.Scanner;
public class ExtractNumberFromString {
   public static void main(String[] args) {
      Scanner sc=new Scanner(System.in);
      System.out.println("Enter a String");
      String c=sc.next();
      String digits = "";
      int no=34;
      int sum=0;
      for(int i=0;i<c.length();i++)
      {
         char ch = c.charAt(i);
         if (Character.isDigit(ch))
         {
            digits = digits+ch;				
            sum=no+Integer.parseInt(digits);				
         }		
      }
      System.out.println(sum);
      //System.out.println(digits);
   }
}

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