What is the difference between a local variable, an instance field, an input parameter, and a class field?
A local variable is defined within the scope of a block. It cannot be used outside of that block. Example: if(x > 10) { String … Read more
variables
Java, “Variable name” cannot be resolved to a variable
If you look at the scope of the variable ‘hoursWorked’ you will see that it is a member of the class (declared as … Read more
Variable might not have been initialized error
You declared them, but you didn’t initialize them. Initializing them is setting them equal to a value: int a; // This is a … Read more
accessing a variable from another class
Very simple question but I can’t do it. I have 3 classes: DrawCircle class import java.awt.*; import java.awt.event.*; import javax.swing.*; class DrawCircle extends … Read more
Passing a variable to get_template_part
The WP Codex says to do this: // You wish to make $my_var available to the template part at `content-part.php` set_query_var( ‘my_var’, $my_var … Read more
JAVA Variable declaration not allowed here
JAVA Variable declaration not allowed here
Initializing multiple variables to the same value in Java
String one, two, three; one = two = three = “”; This should work with immutable objects. It doesn’t make any sense for … Read more
What is the use of a private static variable in Java?
Of course it can be accessed as ClassName.var_name, but only from inside the class in which it is defined – that’s because it is … Read more
In Java, how to assign the variable number=Integer.parseInt(args[0]) a value if no argument is passed?
You could assign value of n as 0 or any other value by default and use if(args.length > 0) { to check whether any arguments is given. Below is … Read more
