How to convert First Character in String to Uppercase in Java - Step by Step Examples

How to convert First Character in String to Uppercase in Java ?

Answer

To convert the first character in a string to uppercase in Java, you can use the substring() method along with the toUpperCase() method.

✐ Examples

1 Converting First Character of "hello world" String to Uppercase

In this example,

We create a string named str1 with a value of "hello world".
We then use the substring() method to extract the first character and the rest of the string.
We convert the first character to uppercase using the toUpperCase() method.
Finally, we concatenate the modified first character with the rest of the string and print the result.

Java Program

public class Main {
    public static void main(String[] args) {
        String str1 = "hello world";
        String modifiedStr1 = str1.substring(0, 1).toUpperCase() + str1.substring(1);
        System.out.println("Modified string is: " + modifiedStr1);
    }
}

Output

Modified string is: Hello world

2 Converting First Character of "java" String to Uppercase

In this example,

We create a string named str2 with a value of "java".
We then use the substring() method to extract the first character and the rest of the string.
We convert the first character to uppercase using the toUpperCase() method.
Finally, we concatenate the modified first character with the rest of the string and print the result.

Java Program

public class Main {
    public static void main(String[] args) {
        String str2 = "java";
        String modifiedStr2 = str2.substring(0, 1).toUpperCase() + str2.substring(1);
        System.out.println("Modified string is: " + modifiedStr2);
    }
}

Output

Modified string is: Java

Summary

In this tutorial, we learned How to convert First Character in String to Uppercase in Java language with well detailed examples.

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How to convert First Character in String to Uppercase in Java - Step by Step Examples

How to convert First Character in String to Uppercase in Java ?

Answer

✐ Examples

1 Converting First Character of "hello world" String to Uppercase

Java Program

Output

2 Converting First Character of "java" String to Uppercase

Java Program

Output

Summary

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