Java toUpperCase() method

The Java toUpperCase() method returns the string in uppercase letters. This method converts all characters of the string into upper-case letters

Example

Let’s understand the toUpperCase() method with an example as shown below:

package com.testingdocs.stringmethods;

public class ExampleProgram {

 public static void main(String[] args) {

 String str= "This is a Sample Sentence Example.";
 
 // toUpperCase() method demo
 System.out.println("Before : " + str);
 System.out.println("After toUpperCase: " + str.toUpperCase());
 }
}

Program Output

The program produces the following output as shown below:

Java Tutorials

Java Tutorial on this website:

• https://www.testingdocs.com/java-tutorial/

For more information on Java, visit the official website :

• https://www.oracle.com/in/java/