Java Program to tOGGLE each word in String

We can tOGGLE each word of a string by the help of split(), toLowerCase(), toUpperCase() and substring() methods. By the help of split("\\s") method, we can get all words in an array. To get the first character, we can use substring() or charAt() method.

Let's see the example to tOGGLE each word in a string.

File: StringFormatter.java

public class StringFormatter {
public static String toggle(String str){
	String words[]=str.split("\\s");
	String toggle="";
	for(String w:words){
		String first=w.substring(0,1);
		String afterfirst=w.substring(1);
		toggle+=first.toLowerCase()+afterfirst.toUpperCase()+" ";
	}
	return toggle.trim();
}
}

File: TestStringFormatter.java

public class TestStringFormatter {
public static void main(String[] args) {
	System.out.println(StringFormatter.toggle("my name is khan"));
	System.out.println(StringFormatter.toggle("I am sonoo jaiswal"));	
	}
}

Output: