What is toUpperCase() Method?
Example
Let’s have a look at a basic example to convert a string to ALL-CAPS using the toUpperCase() method in java.public class UpperCase {
public static void main(String[] args) {
String myCountry = "pakistan";
System.out.println("My Country name is: " + myCountry);
// convert a string to uppercase
System.out.println("My Country name using toUpperCase() is: " + myCountry.toUpperCase() + "\n");
String paragraph = "Code Gym is an amazing place to start your java learning journey!";
System.out.println("Text paragraph: " + paragraph);
// convert a paragraph to uppercase
System.out.println("Text paragraph after using toUpperCase() method: " + paragraph.toUpperCase() + "\n");
char dummyChar = 'a';
System.out.println("dummyChar is: " + dummyChar);
// convert the primitive 'char' type to uppercase
System.out.println("dummyChar using toUpperCase() is: " + Character.toUpperCase(dummyChar));
}
}
Output
My Country name is: pakistan
My Country name using toUpperCase() is: PAKISTAN
Text paragraph: Code Gym is an amazing place to start your java learning journey!
Text paragraph after using toUpperCase() method: CODE GYM IS AN AMAZING PLACE TO START YOUR JAVA LEARNING JOURNEY!
dummyChar is: a
dummyChar using toUpperCase() is: A