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  2. A basic implementation is already included in java.lang.Object and so because all objects inherit from java.lang.Object it is guaranteed that every object in Java has this method. Overriding the method is always a good idea, especially when it comes to debugging, because debuggers often show objects by the result of the toString() method.

  3. The toString() method returns the string representation of the object. If you print any object, java compiler internally invokes the toString() method on the object. So overriding the toString() method, returns the desired output, it can be the state of an object etc. depends on your implementation. Advantage of Java toString() method

  4. Convert java.util.Date to String - Stack Overflow

    stackoverflow.com/questions/5683728

    Conversions to/from java.time are performed by new methods added to the old classes. Instant instant = myUtilDate.toInstant(); Both your java.util.Date and java.time.Instant are in UTC. If you want to see the date and time as UTC, so be it. Call toString to generate a String in standard ISO 8601 format. String output = instant.toString();

  5. One way is to make use of static method toString() in Character class: char ch = 'I'; String str1 = Character.toString(ch); Actually this toString method internally makes use of valueOf method from String class which makes use of char array: public static String toString(char c) { return String.valueOf(c); } So second way is to use this directly:

  6. Java - Convert integer to string - Stack Overflow

    stackoverflow.com/questions/5071040

    Integer class has static method toString() - you can use it: int i = 1234; String str = Integer.toString(i); Returns a String object representing the specified integer. The argument is converted to signed decimal representation and returned as a string, exactly as if the argument and radix 10 were given as arguments to the toString(int, int ...

  7. To formats decimal numbers, you can use java.text.DecimalFormat, define it in the class level as a class member so that it could share it's behavior for all objects of Payroll as @Multithreader mentioned it in the comment, this will be your toString() method:

  8. Java 11 added the readString() method to read small files as a String, preserving line terminators: String content = Files.readString(path, encoding); For versions between Java 7 and 11, here's a compact, robust idiom, wrapped up in a utility method:

  9. Java 8 introduces a String.join(separator, list) method; see Vitalii Federenko's answer.. Before Java 8, using a loop to iterate over the ArrayList was the only option:

  10. JavaDoc: String java.lang.Enum.name() Returns the name of this enum constant, exactly as declared in its enum declaration. Most programmers should use the toString method in preference to this one, as the toString method may return a more user-friendly name.

  11. According to The Java Language Spec: If the term is null, use "null" Primitive types are converted using the boxed-type constructor new Boolean(X) or whatever; toString() is invoked (or equivalent) if the result of toString() is null, use "null" Concatenate the strings.