How to compare two strings in Java using if

Java compare two strings

// compare two strings in java using String.equals() method in java
public class EqualsMethodDemo
{
   public static void main(String[] args)
   {
      String str1 = new String("HelloWorld");
      String str2 = new String("Flower");
      String str3 = new String("Hello");
      String str4 = new String("Hello");
      String str5 = new String("hello");
      // compare str1 != str2
      System.out.println("Compare " + str1 + " and " + str2 + ": " + str1.equals(str2));
      // compare str3 = str4
      System.out.println("Compare " + str3 + " and " + str4 + ": " + str3.equals(str4));
      // compare str4 != str5
      System.out.println("Compare " + str4 + " and " + str5 + ": " + str4.equals(str5));
      // compare str1 != str4
      System.out.println("Compare " + str1 + " and " + str4 + ": " + str1.equals(str4));
   }
}

Posted by: Guest on December-08-2020

Source

class scratch{ public static void main(String[] args) { String str1 = "Nyello"; String str2 = "Hello"; String str3 = "Hello"; System.out.println( str1.equals(str2) ); //prints false System.out.println( str2.equals(str3) ); //prints true } }

// These two have the same value new String("test").equals("test") // --> true // ... but they are not the same object new String("test") == "test" // --> false // ... neither are these new String("test") == new String("test") // --> false

// compare two strings in java .equals() method public class EqualOperatorDemo { public static void main(String[] args) { String str1 = new String("helloworld"); String str2 = new String("helloworld"); System.out.println(str1 == str2); System.out.println(str1.equals(str2)); } }

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