CHAPTERNINE
Be focused and you will archive alot. choose your ON CSS
Explore moreBe focused and you will archive alot. choose your ON CSS
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Explore the different cores of java programming below
Strings in Java are immutable sequences of characters, represented by the String class in the java.lang package. Being one of the most commonly used data types, strings allow developers to handle textual data efficiently.
public class StringOperations { public static void main(String[] args) { String message = "Welcome to Java Programming"; // Length of the string System.out.println("Length: " + message.length()); // Character at a specific index System.out.println("Character at index 8: " + message.charAt(8)); // Substring from the string System.out.println("Substring (11 to 15): " + message.substring(11, 15)); } }
Length: 27 Character at index 8: Welcome Substring (11 to 15): ava P
public class StringComparison { public static void main(String[] args) { String str1 = "Java"; String str2 = "java"; String str3 = "Java"; // Comparing strings using equals() System.out.println("str1 equals str2: " + str1.equals(str2)); // false System.out.println("str1 equals str3: " + str1.equals(str3)); // true // Comparing strings using compareTo() System.out.println("str1 compareTo str2: " + str1.compareTo(str2)); // Negative value System.out.println("str1 compareTo str3: " + str1.compareTo(str3)); // 0 } }
str1 equals str2: false str1 equals str3: true str1 compareTo str2: Negative str1 compareTo str3: 0
public class StringBuilderExample { public static void main(String[] args) { StringBuilder sb = new StringBuilder("Hello"); // Append to the string sb.append(" World"); System.out.println("After append: " + sb); // Insert into the string sb.insert(6, "Java "); System.out.println("After insert: " + sb); // Reverse the string sb.reverse(); System.out.println("After reverse: " + sb); } }
After append: Hello World After insert: Hello Java After reverse: olleH avaJ
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