Sure, I can provide an example Java code that replaces all occurrences of 'for' with '$' in a given string. I will also explain the code step by step. Here is the code:
java
public class ReplaceExample {
public static void main(String[] args) {
String originalString = "for loop is used for iterating over elements.";
// Replace all occurrences of 'for' with '$'
String replacedString = originalString.replaceAll("\\bfor\\b", "\\$");
// Print the original and replaced strings
System.out.println("Original String: " + originalString);
System.out.println("Replaced String: " + replacedString);
}
}
Explanation of the code:
1. Define a class named `ReplaceExample`.
2. Inside the main method, create a string `originalString` that contains the text where we want to replace 'for'.
3. Use the `replaceAll` method on the `originalString` to replace all occurrences of 'for' with '$'. The `\b` around 'for' ensures that it matches the whole word 'for' and not any substring.
4. Store the replaced string in the variable `replacedString`.
5. Print the original and replaced strings using `System.out.println`.
Output:
Original String: for loop is used for iterating over elements.
Replaced String: $ loop is used $ iterating over elements.
You can run this code to see the output. Let me know if you need any further clarification.