In this chapter we will learn Java String, It is used to store a sequence of characters or text.
Example:
String str= "Say Hello";
How to get length of string?
We will use length() method to get the length of the string
Example:
String str= "Hello world!";
System.out.println("The length of the str string is: " + str.length());
output:
run:
The length of the str string is: 12 |
toUpperCase() method
Convert string letters small to capital
Example:
String str= "Hello World";
System.out.println(str.toUpperCase()); //"HELLO WORLD"
toLowerCase() method
Convert string letters capital to small
Example
String str= "Hello World";
System.out.println(str.toLowerCase()); //"hello world"
String Concatenation
use + sign to concatenate string
example:
String fname= "Rathor";
String lname= "Ji";
System.out.println(fname+ " " + lname); //output: Rathor Ji
Thanks, May this example help you.