Hello people…! This is a new post in Java Tutorials – If-Else Switch and Loops in Java. In this post, I will talk about branching and looping in Java, i.e. , about the if-else, switch and loop constructs. With this you can write plenty of programs in Java which you wrote to practice C language. Although the branching and looping in Java is very much like the C language, Java comes with a bunch of new features which C doesn't have. So… Let's get started…!
The If-Else Syntax
This is a program which takes the heights of three friends from the user and displays some statistics. The various types of if-else branching constructs have been demonstrated. This is exactly as in C.
Just from looking at your code, you never generate new slot numbers inside the loops so the slot values will always remain the same. You should put thec code: slot1 = generator.nextInt(10); inside your loop somewhere. How do you write the code using Scanner class to set up a menu (i.e 1 for something, 2 for something, and so on.) Then have the user to choose. Import java.util.; class Main public void displaymenu System.out.println ( '1) Option 1 2) Option 2 3) Option 3' ); System.out.print ( 'Selection.
Switch in Java
The syntax of the switch statement in Java is exactly as in C. switch in Java too, has the 'cascading problem' that occurs when you don't break from the switch. But switch in Java comes with an additional feature that its supports Strings too. So, in Java, using a switch, we can compare Strings. Below, is a small program which computes the trip charges for a vacation company. The user gives the name of the destination as input, which is compared with available destinations using the switch statement.
for loop in Java
The syntax of the for loop in Java is exactly as in C. Unlike in C, we can declare the counter inside the loop statement itself to tighten the scope of the variable, which is a good thing. Below, is a simple program which prints the contents of an array of strings and its length.
As you can see, I was able to declare the counter of the loop i in the for statement itself. I used a couple of new things –
- countries.length
- countries[i].length()
First, is a feature of Java to know the length of arrays and the second, is a method to know the length of the String. We will have a detailed discussion about them later.
In the for loop, the we can initialise more than one variable. The statements are to be separated by a comma. A sample would be –
Similarly, the increment / decrement region can also have multiple statements separated by a comma –
Enhanced for loop in Java
There is another syntax for writing the for loop in Java. In this, we iterate through every element in a given Collection, like arrays. Unlike in the normal for loop, here, we won't have an option of skipping an item, we must traverse though every item. The syntax is as –
Where the Collection is an array for now. Later, we'll see what else we can put there. The data type of the variable must match the data type of the Collection. So, we can re-write the ForLoop Class using the enhanced for loop –
This is the enhanced for loop in Java. It is a more compact way of writing the for loop. For each iteration, the variable 'name' will contain the value of that corresponding iterate item from the countries[] array, or, the vaguely speaking, value of countries[i]. One more important thing about this feature is that, the enhanced for loop is read-only. That is, using the enhanced for loop, we cannot modify the elements of the existing array.
while loop in Java
The while loop in Java has the exact syntax of the while loop in C. But, a matter of notice is that, Java is a strongly typed language. So, the condition in the while statement must yield a boolean value. We have a common practice of writing while loops in C as –
Slot Machine Java Code While/for Loops Free
This will NOT work in Java. Because we are giving an integer in the condition. In C, non-zero values are treated to be true and zero is treated as false. There is no such thing in Java. If we write the while loop in that way, there will be a compilation error saying, 'Incompatible Types : int cannot be converted to boolean'. I am emphasizing on this because I faced this many times, so I want you to keep this in the back of your mind. If not for this, the while loop in Java is exactly as in C. Just for practise, try re-writing the above countries program using a while loop. It should look like this –
do while loop in Java
The do while loop in Java is also exactly as in C. The same point about the boolean expression holds here too. To make things clear, let's re-write the same countries code with a do while loop –
This is the do while loop in Java. I might as well have written just the loop part of it for each of the types of loops. But I took the pain of writing the whole program so that you get used to the class and public static void main(String[] args) stuff. As insignificant as it may seem to you, I still insist you to write all the programs again yourself. You cannot learn a language or be comfortable with it without writing code, even if you already know the most part of it.
Labelled Loops in Java
This is a feature of Java where we can assign some labels, or names, to the loops. This is not there in C, so you'd better watch closely.! Let's take a small example to understand the syntax –
Slot Machine Java Code While/for Loops Tutorial
Here, the names InnerLoop and OuterLoop are the labels of the respective loops. So, to assign a label to a loop, we write the label followed by a colon, just before the loop statement. But, why would anyone bother about this.? These become handy when used with break and continue clauses. Using only a break or continue clause would would affect the execution of the loop which is the nearest loop outside, or parent loop, as it is in C. But using the labels, we can break or continue from any loop…!
Simple Slot Machine Java Code
This is how we use the labelled loops. That program, searches for an element in a 2D array linearly, and breaks out of both the loops when it finds the element. We can give labels not only to for loops, but also to while and do while loops and even blocks (code inside '{.}') if it seems sensible to you.
Summary
- The switch construct in Java supports Strings also. Hence, we can take decisions based on string-matching.
- Just like the switch in C, the case statements cascade if break is not given.
- The conditions in the while loop construct strictly expects a boolean value. So it is for the do while loop.
- We can use labels with loops which can be used to break or continue from a not-the-nearest loop.
Practice
- How many times will the 'InfiniteLoop' loop run…?
- Can you guess the output of this program.?
P.S. – Don't run it.! Try it manually.! 😛
- Can you guess the output of this program.?
P.S. – Don't run it.! Try it manually.! 😛
CI-slot together may be used with CI + CAM, and vice versa, but will be available for viewing only those television programs which are not marked as CI +. CAM module IRDETO CAM module Viaccess. Philips Model number 24PHH5210/88Message: 'CI Plus key Failure'. No channels installed and cannot re-install. This is a basic TV, no satellite connections or anything other than antenna for TV channels.
I hope you have understood the differences of the features provided by Java and C when it comes to branching and looping. Feel free to comment your doubts.! Keep practising.! Happy Coding.! 😀
Related
Hello people…! This is a new post in Java Tutorials – If-Else Switch and Loops in Java. In this post, I will talk about branching and looping in Java, i.e. , about the if-else, switch and loop constructs. With this you can write plenty of programs in Java which you wrote to practice C language. Although the branching and looping in Java is very much like the C language, Java comes with a bunch of new features which C doesn't have. So… Let's get started…!
The If-Else Syntax
This is a program which takes the heights of three friends from the user and displays some statistics. The various types of if-else branching constructs have been demonstrated. This is exactly as in C.
Just from looking at your code, you never generate new slot numbers inside the loops so the slot values will always remain the same. You should put thec code: slot1 = generator.nextInt(10); inside your loop somewhere. How do you write the code using Scanner class to set up a menu (i.e 1 for something, 2 for something, and so on.) Then have the user to choose. Import java.util.; class Main public void displaymenu System.out.println ( '1) Option 1 2) Option 2 3) Option 3' ); System.out.print ( 'Selection.
Switch in Java
The syntax of the switch statement in Java is exactly as in C. switch in Java too, has the 'cascading problem' that occurs when you don't break from the switch. But switch in Java comes with an additional feature that its supports Strings too. So, in Java, using a switch, we can compare Strings. Below, is a small program which computes the trip charges for a vacation company. The user gives the name of the destination as input, which is compared with available destinations using the switch statement.
for loop in Java
The syntax of the for loop in Java is exactly as in C. Unlike in C, we can declare the counter inside the loop statement itself to tighten the scope of the variable, which is a good thing. Below, is a simple program which prints the contents of an array of strings and its length.
As you can see, I was able to declare the counter of the loop i in the for statement itself. I used a couple of new things –
- countries.length
- countries[i].length()
First, is a feature of Java to know the length of arrays and the second, is a method to know the length of the String. We will have a detailed discussion about them later.
In the for loop, the we can initialise more than one variable. The statements are to be separated by a comma. A sample would be –
Similarly, the increment / decrement region can also have multiple statements separated by a comma –
Enhanced for loop in Java
There is another syntax for writing the for loop in Java. In this, we iterate through every element in a given Collection, like arrays. Unlike in the normal for loop, here, we won't have an option of skipping an item, we must traverse though every item. The syntax is as –
Where the Collection is an array for now. Later, we'll see what else we can put there. The data type of the variable must match the data type of the Collection. So, we can re-write the ForLoop Class using the enhanced for loop –
This is the enhanced for loop in Java. It is a more compact way of writing the for loop. For each iteration, the variable 'name' will contain the value of that corresponding iterate item from the countries[] array, or, the vaguely speaking, value of countries[i]. One more important thing about this feature is that, the enhanced for loop is read-only. That is, using the enhanced for loop, we cannot modify the elements of the existing array.
while loop in Java
The while loop in Java has the exact syntax of the while loop in C. But, a matter of notice is that, Java is a strongly typed language. So, the condition in the while statement must yield a boolean value. We have a common practice of writing while loops in C as –
Slot Machine Java Code While/for Loops Free
This will NOT work in Java. Because we are giving an integer in the condition. In C, non-zero values are treated to be true and zero is treated as false. There is no such thing in Java. If we write the while loop in that way, there will be a compilation error saying, 'Incompatible Types : int cannot be converted to boolean'. I am emphasizing on this because I faced this many times, so I want you to keep this in the back of your mind. If not for this, the while loop in Java is exactly as in C. Just for practise, try re-writing the above countries program using a while loop. It should look like this –
do while loop in Java
The do while loop in Java is also exactly as in C. The same point about the boolean expression holds here too. To make things clear, let's re-write the same countries code with a do while loop –
This is the do while loop in Java. I might as well have written just the loop part of it for each of the types of loops. But I took the pain of writing the whole program so that you get used to the class and public static void main(String[] args) stuff. As insignificant as it may seem to you, I still insist you to write all the programs again yourself. You cannot learn a language or be comfortable with it without writing code, even if you already know the most part of it.
Labelled Loops in Java
This is a feature of Java where we can assign some labels, or names, to the loops. This is not there in C, so you'd better watch closely.! Let's take a small example to understand the syntax –
Slot Machine Java Code While/for Loops Tutorial
Here, the names InnerLoop and OuterLoop are the labels of the respective loops. So, to assign a label to a loop, we write the label followed by a colon, just before the loop statement. But, why would anyone bother about this.? These become handy when used with break and continue clauses. Using only a break or continue clause would would affect the execution of the loop which is the nearest loop outside, or parent loop, as it is in C. But using the labels, we can break or continue from any loop…!
Simple Slot Machine Java Code
This is how we use the labelled loops. That program, searches for an element in a 2D array linearly, and breaks out of both the loops when it finds the element. We can give labels not only to for loops, but also to while and do while loops and even blocks (code inside '{.}') if it seems sensible to you.
Summary
- The switch construct in Java supports Strings also. Hence, we can take decisions based on string-matching.
- Just like the switch in C, the case statements cascade if break is not given.
- The conditions in the while loop construct strictly expects a boolean value. So it is for the do while loop.
- We can use labels with loops which can be used to break or continue from a not-the-nearest loop.
Practice
- How many times will the 'InfiniteLoop' loop run…?
- Can you guess the output of this program.?
P.S. – Don't run it.! Try it manually.! 😛
- Can you guess the output of this program.?
P.S. – Don't run it.! Try it manually.! 😛
CI-slot together may be used with CI + CAM, and vice versa, but will be available for viewing only those television programs which are not marked as CI +. CAM module IRDETO CAM module Viaccess. Philips Model number 24PHH5210/88Message: 'CI Plus key Failure'. No channels installed and cannot re-install. This is a basic TV, no satellite connections or anything other than antenna for TV channels. In desperation, I changed the nand from the old main. The correct image has appeared, but after a dozen or so seconds a red 'CI Plus Key Fail.' Appears in the upper part of the matrix. The factory settings also do not add anything. And what's weird in SDM is now an empty frame with no menu, just a string of digits 080087. CI+ (also known as CI Plus or Common Interface Plus) is a specification that extends the original DVB Common Interface standard (DVB-CI, sometimes referred to as DVB-CIv1).
I hope you have understood the differences of the features provided by Java and C when it comes to branching and looping. Feel free to comment your doubts.! Keep practising.! Happy Coding.! 😀
Related
Node js texas holdem tournament. No matter how simple or complex the game is, Java can do the job!
Slot Machine Java Code While/for Loops C++
On this post, let's take a look at how beginners of Java programming can make a simple, yet fully functional slot machine. Slot machines have been around for a long time, but its entertainment value doesn't seem to fade one bit. InterCasino, the first website to offer online casino gaming to the world in 1996, is still around and its slot games seem to get updated often. In addition, according to the American Gaming Association, slots generate around 62% – 90% of gaming money, making the machines the cash cows of casinos. With these facts in mind, don't you ever want to create your very own slot machine that millions of casino gaming fans might like in the future? If you're interested in creating Java-based slot games, the code below might prove useful for you.
Slot Machine Java Code While/for Loops Download
Kudos to M ajestic, a YouTube user, for the code above. Here are the images that he used in the creation of the game.
Slot Machine Java Code While/for Loops Tutorial
If you made it this far, you may as well follow me:
