Strings Java

Creating Strings

The most direct way to create a string is to write : String greeting = "hello world"; Whenever it encounters a string literal in your code, the compiler creates a String object with its value in this case, "Hello world!'.

Some String Handling Methods

-char charAt(int index) - Returns the character at the specified index. -compareTo(Object o) - Compares this String to another Object. -String concat(String str) - Concatenates the specified string to the end of this string. -boolean equals(Object anObject) - Compares this string to the specified object. -boolean equalsIgnoreCase(String anotherString) - Compares this String to another String, ignoring case considerations.

String Length

Methods used to obtain information about an object are known as accessor methods. One accessor method that you can use with strings is the length() method, which returns the number of characters contained in the string object.

What is a String?

Strings, which are widely used in Java programming, are a sequence of characters. In Java programming language, strings are treated as objects.

Concatenating Strings

The String class includes a method for concatenating two strings : string1.concat(string2); This returns a new string that is string1 with string2 added to it at the end. You can also use the concat() method with string literals "My Name is".concat("Zara"); Strings are most commonly concatenated with the "+" operator "Hello," + " world" + "!"