java

The following Java program is a do…while Loop structure. In Java, do is a reserved word. As with the other repetition structures, a do…while statement can be either a simple or compound statement. If it is compound statement, enclose it between curly brackets. The expression is called loop condition.

The following is a Java Program using switch structures. In Java, switch, case, break and default are reserved words. In a switch structure, the expression is evaluated first. The value of expression is then used to perform the actions specified in the statements that follow the reserved word case.

The following java program uses a Flag-Controlled While Loop. It uses a Boolean variable to control the loop. The variable such as found, which is used to control the execution of the while loop, is called flag variable. .

The following java program application uses Sentinel Controlled While Loop. You might not know how many times a set of statements need to be executed, but you do know that the statements need to be executed until a special value is met. This special value is called a sentinel. .

The following Java program uses Counter Controlled While Loops. Suppose you know exactly how many times certain statements need to be executed. In such cases, while loops assumes the form of a counter-controlled while loops. Suppose that a set of statements need to be executed N times. You can set up a counter to track how many items have been read. .

In this tutorial, you will learn the basic elements and concepts of Java Programming language to create a Java Program. You will know the effect of an output statement in this program. I will be using the JCreator IDE in developing the program. To start in this tutorial, first open the JCreator IDE, click new and paste the following code.

In the previous tutorial, we covered how to create a text file in Java, and then store values in it.

Many times it is important to write output to a file to be saved. This is commonplace in just about every kind of Java application - from business to games. It allows the users information/status/progress to be saved or recorded for future reference. In order for this to work, the simplest solution is to create a file in the same folder as the Java program. For this example, we are going to create an output file called output.txt.

There are times when it is necessary to accept input as a string, yet you may need to take a value from that string and convert it into an integer for calculations. This is a very common practice in Java programming.