Write a Java Program to Check if a string contains a substring

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class Main {
  public static void main(String[] args) {
    // create a string
    String txt = "This is Programiz";
    String str1 = "Programiz";
    String str2 = "Programming";

    // check if name is present in txt
    // using contains()
    boolean result = txt.contains(str1);
    if(result) {
      System.out.println(str1 + " is present in the string.");
    }
    else {
      System.out.println(str1 + " is not present in the string.");
    }

    result = txt.contains(str2);
    if(result) {
      System.out.println(str2 + " is present in the string.");
    }
    else {
      System.out.println(str2 + " is not present in the string.");
    }
  }
}