If statementAn If statement contains a Boolean expression and one or more statements.GrammarThe syntax for the IF statement is as follows:if (Boolean expression){If the Boolean expression is true, the statement executed}If the value of the Boolean
Switch statement
The C language also provides another switch statement for multiple branch selections, in the general form of:switch (expression) {case constant Expression 1: statement 1;Case constant Expression 2: statement 2;...case constant
Dark Horse programmer-java basics-Basic Knowledge (3), dark horse java
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1. Process Control 1. Select structure statements
Select a structure statement to execute
Swift provides a C-like process control structure that includes a for and while loops that can perform tasks multiple times, select if and switch statements that execute different branches of code based on specific criteria, as well as break and
In front of you to explain a multi-choice ElseIf statement, although this statement can make a variety of judgments, but when used, need to write a lot of if statements, to our program readability inconvenience, in order to avoid the IF statement
Q: What do you mean by card_name[0]?A: It is the first character entered by the user. If the user enters 10, then card_name[0] will be 1.Q: Do I always have to write comments with/* and/*?A: If your compiler supports the C99 standard, you can start
The following points should be noted when writing Java programs:Case-sensitive: Java is case-sensitive, which means that the identifier Hello is different from hello.Class name: For all classes, the first letter of the class name should be
Java If...else if...else StatementsThe If statement can be followed by a elseif...else statement, which detects a variety of possible scenarios.When using the If,else if,else statement, the following points need to be noted:
The IF
A switch statement allows a variable to be tested equal to the list of opposing values. Each value is referred to as a case, and the variable is switched on to check each switch case.
In go programming, there are two types of switch.
Expression
Loop controlThere may be a situation when we need to execute a block of code several times, often referred to as a loop.Java has a very flexible three-loop mechanism. You can use one of the following three loops:
While loop
Do...while
1. Java Language Foundation (basic usage of logical operators)
A: What are logical operators
&,|,^,!
&&,| |
B: Case Demo
Basic usage of logical operators
Precautions:
A: Logical operators are
------Java Training, Android training, iOS training,. NET training, look forward to communicating with you! -------This article mainly introduces the process control in the Java Basic grammar, and the process control is the basis for us to write
When using the IF statement, if you encounter many conditions, you should not continue to use the IF statement, JavaScript provides a more efficient alternative, that is the switch statement, we first look at the switch statement template:hello
Tips"Effective Java, third Edition" an English version has been published, the second edition of this book presumably many people have read, known as one of the four major Java books, but the second edition of 2009 published, to now nearly 8 years,
1, Java programs exist in the form of classes, so you need to tell the virtual machine where to load the class, you can set the CLASSPATH variable. The CLASSPATH variable, if any, indicates that it will also be found in the current directory, and
Switch is a switch statement, so many friends only know the simple switch switch statement usage, the following tutorial small series for you to give a detailed introduction to switch usage examples.
Only so called "advanced" usage, because I have
Chapter 6 control statementsThere is a statement that you can find in each programming language control flow statement. In this chapter, I introduced the control statements of C #, which are divided into two main parts:. Select statement. Loop
The switch statement is similar to the IF statement, both conditional statements. In many cases, you need to compare a variable (or expression) to a different value and execute a different code depending on which value it equals, which is more
The switch statement is used to perform different actions based on different conditions. This article introduces the usage examples of switch statements in PHP, it involves the knowledge points of switch usage, and the friends who are interested in
This article describes in detail the use of the switch statement in PHP, as well as the switch case in the condition of 0 o'clock processing method, there is a need to understand the students can refer to.
Switch statementIf you want to selectively
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