String Concatenation Test in Java

Sample Java program to concatenate two strings using plus (+) concatenation operator.

public class StringConcatination {
	public static void main(String args[]) {
		String str1 = "Hello";
		String str2 = "JavaTechig";

		// Concatenation
		String str3 = str1.concat(str2);

		System.out.println("str1 = " + str1);
		System.out.println("str2 = " + str2);
		System.out.println("str3 = " + str3);

		String str4 = "Hello";

		// checking equals
		if (str4.equals(str1)) {
			System.out.println("str4 is equal to str1");
		} else {
			System.out.println("str4 is not equal to str1");
		}

	}
}