java conversion

In the previous post, we covered a String to Date conversion. In this post, you will learn to convert LocalDate and LocalDateTime to String in Java. LocalDate and LocalDateTime are immutable date-time objects that represent a date and a date and time. Convert LocalDate to String in Java Below is the program that parses a LocaDate object to a String using…

In this lesson, you will learn to convert String to LocalDate and LocalDateTime objects. LocalDate and LocalDateTime are immutable date-time objects representing a date and a date and time. To convert String to one of the two Date objects, the provided String must represent a valid date or time according to ISO_LOCAL_DATE or ISO_LOCAL_DATE_TIME.  Otherwise, a DateTimeParseException will…

We can convert boolean to String in Java using the following methods: String.valueOf() method Boolean.toString() method Convert boolean to String in Java using the String.valueOf() method There are multiple overloaded versions of the valueOf() method from the String class. We will use the one which accepts boolean. Example class Test { public static void main(String[] args)…

To convert String to boolean in Java, you can use one of the following methods: Boolean.parseBoolean() method BooleanUtils.toBoolean() method Boolean.valueOf() method if we need a Boolean object instead of a primive Convert String to boolean in Java using the Boolean.parseBoolean() method With the parseBoolean(String s) method of the Boolean class, if we want to get…

In one of the previous lessons, we covered conversion from String to int. Here, you will learn how to convert int to String in Java. There are some predefined methods that we can use for that, like the following: String.valueOf() method Integer.toString method String.format() method Convert int to String in Java using the String.valueOf() method…

To convert String to char in Java we can use the charAt() method of the String class. This method returns the char value at the specified index. Syntax public char charAt(int index) Example class Test { public static void main(String[] args) { char ch = “java”.charAt(1); // returns char ‘a’ System.out.println(“char: ” + ch); } }…

We can convert float to String in Java using the following methods: String.valueOf() method Float.toString() method Convert float to String in Java using the String.valueOf() method There are multiple overloaded versions of the valueOf() method from the String class. We will use the one which accepts float. Example class Test { public static void main(String[] args)…

We often have to extract some text that is a number. To perform some operations on that number, we must first convert it to the appropriate type. In this post, you will learn how to convert Java String to float data type. You can use the Float.parseFloat() method to parse Java String to float. public static…

We can convert Double to String in Java using the following methods: String.valueOf() method Double.toString() method Convert Double to String in Java using the String.valueOf() method There are multiple overloaded versions of the valueOf() method from the String class. We will use the one which accepts double. Example class Test { public static void main(String[] args)…

There are cases when we get a String that is actually a double. To work with it, we need to convert it to a double type. Let’s see how we can convert String to Double in Java. Convert Java String to Double with parseDouble() method In the below example. we use the parseDouble() method of…