touppercase in java code example

Example 1: uppercase java

string s="hello";
s = Character.toUpperCase(s.charAt(0)) + s.substring(1);
The output will be: Hello

Example 2: String toUpperCase() method in java

// java program to convert string into uppercase
public class StringToUppercaseDemo
{
   public static void main(String[] args)
   {
      String str = "flower brackets";
      System.out.println(str.toUpperCase());
   }
}

Example 3: java lower case to upper case

toUpperCase()