String Operations in Java

Understanding through Code

public class StringOps {  	public static void main( String[] args ){    		String str1 = "Hello this is AI talking.";  		System.out.println("Length of string: " +str1.length());    		System.out.println("Position (Index) of substring: " +str1.indexOf("AI"));    		String substr = str1.substring(14); //for verification  		System.out.println(substr);    		String str2 = "Aloha          "; //string with spaces  		System.out.println("Length of string with spaces: " +str2.length());    		String str3 = str2.trim();  //removes whitespace    		System.out.println(str3.length());    	}  }

Output

• Length of string: 25
• Position (Index) of substring: 14
• AI talking.
• Length of string with spaces: 15
• 5