How to get extract numbers or digits or numeric values and numbers array from a string in Java

 import com.google.common.base.CharMatcher;  
 import java.util.Arrays;  
   
 public class Getnumbers {  
   
   // Get extract numbers from String  
   public static String getAllNumberfromString(String input) {  
     final StringBuilder sb = new StringBuilder();  
     for (int i = 0; i < input.length(); i++) {  
       final char c = input.charAt(i);  
       if (c > 47 && c < 58) {  
         sb.append(c);  
       }  
     }  
     return sb.toString();  
   }  
   
   // Get only Numbers from String  
   public static String getExtractDigits(String src) {  
     StringBuilder builder = new StringBuilder();  
     for (int i = 0; i < src.length(); i++) {  
       char c = src.charAt(i);  
       if (Character.isDigit(c)) {  
         builder.append(c);  
       }  
     }  
     return builder.toString();  
   }  
   
   public static void main(String[] arg) {     
   
     String input = "Total 128 jobs Found 25";  
     String str = "abc d 1234567890pqr 54897";  
   
     // Get only Numbers from Alphanumeric String using methods  
     System.out.println(getAllNumberfromString(input));  
     System.out.println(getAllNumberfromString(input));  
     System.out.println(getExtractDigits(str));  
     System.out.println(getExtractDigits(str));  
   
     // Get extract numbers from String using Regular Expressions  
     System.out.println(input.replaceAll("[^0-9]", ""));  
     System.out.println(str.replaceAll("\\D+", ""));  
   
     // Get extract numbers from String using building method  
     System.out.println(CharMatcher.DIGIT.retainFrom(input));  
   
     // Get extract numbers separately from String using Regular Expressions  
     System.out.println(input.replaceAll("[^-?0-9]+", " "));  
   
     // Get numbers array from String using Regular Expressions  
     System.out.println(Arrays.asList(str.replaceAll("[^-?0-9]+", " ").trim().split(" ")));  
   }  
 }  
   

Output: