Java String Constructors allows us to create a string object from different type of arguments. Why do we need String Constructors? We can create string object using double quotes. So why do we need so many constructors in String Class? A string is a sequence of characters. Sometimes we want to create a string object …
The byte is a primitive type in Java. In this tutorial, we will learn how to convert String to byte array. We will also learn how to convert byte array to string. Java String to Byte Array We can convert String to byte array using getBytes() method. This method encodes the string into a sequence …
How to Convert Java String to Byte Array, Byte to String Read More »
Java String charAt() method returns the character at the specified index. Java String charAt() Example Let’s look at a simple example of charAt() method. We will use JShell to run the code snippet. What if String is defined with Unicode Characters? We can declare string variable using Unicode too. In this case, the Unicode value …
Sometimes we have to remove characters from a String in Java. There is no remove() method in String class to do this. Java Remove Character from String Java String class has various replace() methods. We can use this to remove characters from a string. The idea is to pass an empty string as a replacement. …
Java String hashCode() method returns the integer hash code value of this string. String class overrides this method from Object class. How Does Java Calculates String Hash Code? The string hash code calculation follows the below logic. Here s[i] is the character at ith index. ^ indicates exponentiation n is the length of the string. The …
The String in java represents a stream of characters. There are many ways to convert string to character array. Java Convert String to char Array Manual code using for loop String toCharArray() method String getChars() method for subset String charAt() method Let’s look into some examples to convert string to char array in Java. 1. …
4 Different Ways to Convert String to Char Array in Java Read More »
String comparison is a common operation in programming. We compare two strings to check if they are equal or not. Sometimes, we compare two strings to check which of them comes first lexicographically. This is useful when we have to sort a collection of strings. In this tutorial, we will look at the various ways …
Java 7 started support for using String in switch case. In earlier versions, if you have to write conditional logic based on a string, you had to use if-else blocks. Java String Switch Case Example Let’s look at some examples of using string in switch case statements. Output: Java String Switch Case vs if-else Let’s …
Java String length() method returns the length of this string. The output is the number of Unicode code units in the string. Java String length() Method Example Let’s look at a simple program for finding the length of a string in Java. Output: What happens when String has Unicode characters? We can create a string object …
Java String to double conversion can be done in many ways. The double is a primitive data type. Double is the corresponding wrapper class. Java supports autoboxing. So we can use double primitive value and Double object interchangeably. The Double class provides different methods to convert string to double in Java. Different Ways to Convert …