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Java String to ArrayList Example

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  1. import java.util.ArrayList;
  2. import java.util.Arrays;
  3.  
  4. /*
  5.         Java String to ArrayList Example.
  6.         This Java String to ArrayList example shows how to convert Java String containing values to
  7.         Java ArrayList.
  8.  
  9.  */
  10. public class JavaStringToArrayList {
  11.         public static void main(String args[]){
  12.                
  13.                 //String object having values, separated by ","
  14.                 String strNumbers = "1,2,3,4,5";
  15.                
  16.                 /*
  17.                  * To convert Java String to ArrayList, first split the string and then
  18.                  * use asList method of Arrays class to convert it to ArrayList.
  19.                  */
  20.                
  21.                 //split the string using separator, in this case it is ","
  22.                 String[] strValues = strNumbers.split(",");
  23.                
  24.                 /*
  25.                  * Use asList method of Arrays class to convert Java String array to ArrayList
  26.                  */
  27.                 ArrayList<String> aListNumbers = new ArrayList<String>(Arrays.asList(strValues));
  28.                
  29.                 System.out.println("Java String converted to ArrayList: " + aListNumbers);
  30.         }
  31. }
  32.  
  33. /*
  34. Output of Java String to ArrayList example would be
  35. Java String converted to ArrayList: [1, 2, 3, 4, 5]
  36. */