by Dinesh Thakur

String toUppercase ():This method converts all of the characters in the invoking string to uppercase. For example,

str1.toUppercase(); //returns HELLO JAVA

public class StringtoUpperCase

{
     public static void main(String[] args)
     {
            String strl = "hello java";
             System.out.println("strl.toUpperCase() = " + strl. toUpperCase());
      }
}

String toUpperCase() in Java Example