Java Online Compiler
Example: StringConcatenation in Java
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Main.java
STDIN
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// StringConcatenation public class Main { public static void main(String[] args) { // Step 1: Initialize two strings String firstName = "John"; String lastName = "Doe"; // Step 2: Concatenate using the '+' operator String fullName = firstName + " " + lastName; // Step 3: Concatenate using the concat() method String message = "Hello, ".concat(firstName).concat("!"); // Step 4: Print the concatenated strings System.out.println("Full Name: " + fullName); System.out.println("Message: " + message); } }
Output
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