Page 80 - CTS - CSA TP - Volume 2

COMPUTER SOFTWARE APPLICATION - CITS

TASK 3: Java program to perform various string methods in single program

public class StringMethodsExample {
public static void main(String[] args) {
// Example String
String originalString = “Hello, World!”;

System.out.println(“Original String: “ + originalString);

// 1. Convert to Uppercase
String uppercaseString = originalString.toUpperCase();
System.out.println(“1. Uppercase: “ + uppercaseString);

// 2. Convert to Lowercase
String lowercaseString = originalString.toLowerCase();
System.out.println(“2. Lowercase: “ + lowercaseString);

// 3. Substring
String substring = originalString.substring(7, 12);
System.out.println(“3. Substring ( Display ‘World’ from the Original String): “ + substring);

// 4. Index of a Character
int indexOfW = originalString.indexOf(‘W’);
System.out.println(“4. Index of ‘W’ (index value start from 0): “ + indexOfW);

// 5. Replace characters
String replacedString = originalString.replace(‘o’, ‘X’);
System.out.println(“5. Replaced String ( Replacing ‘o’ with ‘X’): “ + replacedString);

// 6. Check if starts with “Hello”
boolean startsWithHello = originalString.startsWith(“Hello”);

System.out.println(“6. Starts with ‘Hello’: “ + startsWithHello);

// 7. Check if ends with “World!”
boolean endsWithWorld = originalString.endsWith(“World!”);

System.out.println(“7. Ends with ‘World!’: “ + endsWithWorld);

// 8. Trim leading and trailing whitespaces
String stringWithWhitespaces = “ Trim Me “;

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CITS : IT & ITES - Computer Software Application - Exercise 92