Question

Examine this code:

String str = "Hello\tWorld!" ;
System.out.println( () );
What will it write?

Answer 1

The given code snippet defines a String with a tab character but does not print it directly. To print 'Hello World!', the println method should include the String variable 'str' as its argument. Without the argument, it will simply print an empty line.

Step-by-step explanation:

The student is asking what the output will be when the code snippet is executed. The given code defines a String object str with the value "Hello\tWorld!" and attempts to print it. In Java, '\t' is a tab character, so it will produce a tab space between 'Hello' and 'World!'. If the System.out.println() method call contained str as its argument, the output would be:

Hello World!

However, since the System.out.println() method call is empty, it will just print an empty line if executed as is. To print the actual str contents, the method call should be System.out.println(str).