Question

How to capitalize the first character of a string in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        String s = "java";
        
        s = Character.toUpperCase(s.charAt(0)) + s.substring(1);

        System.out.println(s);
    }
}



/*
run:

Java

*/

 

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Answer 2

public class MyClass {
    public static void main(String args[]) {
        String s = "java";
        
        s = s.substring(0, 1).toUpperCase() + s.substring(1);

        System.out.println(s);
    }
}



/*
run:

Java

*/

 

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