![]() In this tutorial, we have covered the illegal start of an expression and solve it in Java. Developing your skills in programming will, however, reduce these errors and make your debugging skills better. Programming errors are always invertible. Sample.java:7: error: reached end of file while parsing This means the compiler is unable to locate the end of the statement. In some compilers, this error will be displayed as error: reached end of file while parsing. If you lack the quotes, the java compiler considers them as names. Initializing a string or char string variable without his results into the compile-time error. String variables and character variables must be within the double-quotes and single quotes, respectively. University.java:11: error: class, interface, or enum expectedħ errors String without a double quote or Character without single quoteĪ character is a primitive data type, and a String is a class. University.java:6: error: illegal start of expression Assigning an access modifier tries to change the scope of the inner class to be accessible outside the method resulting in an illegal start of expression. This will be a local class that will only be used inside that method. Java does not allow a method inside a method, but funny enough, it will enable one to write a class within a method. Class inside a method must not have a modifier The best practice would be to declare another method outside the main method and call it in the main as per your requirements. To solve this, we make sure you do not use a method inside another method in Java. However, since java syntax rules of programming do not allow this, it throws an illegal start of expression. In the above code, Method2 is inside the main method. ![]() Number.java:7: error: illegal start of expression In an instance where this was a local variable, an illegal start of an expression will be displayed. Assigning an access modifier changes the scope of a variable during declaration.Įxample: Defining a global variable as ‘public student ‘ means the variable is public and can be used anywhere in a class. They have a limited scope hence cannot be used anywhere in the class. Unlike global variables that can be used anywhere in the class, local variables can only be used within a block. ![]() Use of access modifiers with local variablesĪn access modifier sets the scope of methods constructors or classes and other members. With that said, let’s look at some scenarios where you can encounter this error and solve it. ![]() ![]() It might be hard for you to notice this hence the necessity of improving your daily programming skills. In the above example, an illegal start of an expression is thrown since we started with (=>) rather than writing the expression as (5 >=2). JOptionPane.How to call a Method in Java $javac equals.javaĮquals.java:6: error: illegal start of expression JOptionPane.showMessageDialog(null, "Introduction to student class:" + " " + "Hello! My name is" + " " + n + " " + "and I am" + " " + h + " " + "meters tall.") JOptionPane.showMessageDialog(null, "Press ok if your height is" + " " + h + " " + "meters") String h = JOptionPane.showInputDialog("What is your height? (in meters: eg - 1.80)") JOptionPane.showMessageDialog(null, "Press ok if your name is" + " " + n) String n = JOptionPane.showInputDialog("Type in your name") JOptionPane.showMessageDialog(null, "Welcome!" + '\n') So if anybody can see where I have gone wrong I would be very grateful :) import javax.swing.* In my opinion, I think that part is correct, and throughout I have used correct methodology. In my for loop, I want to have my array grades have 10 values (which is already defined), and these values will be random from 60 to 99. In my code, I am getting an illegal start of type error in my for loop (located in the student class). ![]()
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