java switch tutorial

When there are too many conditional judgment statements (if statements), you can use switch statements to write them. The basic structure of a switch statement is:switch (integer) {Case Integer value 1: statement; BreakCase Integer value 2: statement; BreakCase Integer value 3: statement; Break..........................Default: statement;}When the value of "integer" equals "integer value 1", "Integer value

JAVA if Condition Statement, switch multi-branch structure, and logical operators, switch operators I. if condition statements Example: Import java. util. role; public class Test {public static void main (String [] args) {role in = new role (System. in); System. out. println ("Enter the student's score:"); int num = in

Java tutorial translation Sequence Java Introduction Build a JSE development environment-install JDK and eclipse Language basics Java Hello World Program Analysis Variable Java Variables Java Native type Conversion of

switch(i) {20 case 0:21 System.out.println("abc");22 break;23 case 1:24 System.out.println("def");25 break;26 default:27 System.out.println("default");28 }29 }30 } If the switch is passed in null, NullPointerException will occur when a hashCode method is called for a null object at runtime. If the

In the experience of dual systems, we also need to set some default parameters, such as the default boot system how to set up? How to switch two systems? The system is tired of playing, how to remove a dual system? The above questions can be found in this article to find a solution. Figure 1 The graphics and text tutorial teaches you to play the dual system 　　How to set the default system for

Switch of the Java conditional statementUsing a switch statement is more concise when you need to make an equivalent judgment on an option. For example: According to the rank of the exam, give the top 4 different prizes. First prize notebook one, second prize IPAD 21, Third prize mobile power one; the last one to reward u disk.Syntax: 650) this.width=650; "src="

we take doctrine between, put their own projects can be, if we diligent, we look at others source code, more people design, I can continue to upgrade their projects , and Delphi, a little backwater of bright.Support for 3.webWe deploy Java Web Project, can choose the server is also very much, for the Internet so developed in today's society, if like Delphi, just to desktop products exquisite, that undoubtedly lost the largest network market.The exist

Switch statements in Java:Here expression control expressions can only have data types of byte, short, char, int four integer types and enumeration types, and cannot be of type Boolean;Java7 (1.7) improved the Switch Branch statement;Java7 allows the control expression in the switch statement to be of type java.lang.String ( cannot be stringbuffer or StringBuilde

When more than one Java is installed in a Linux system, we can switch the Java version automatically when the original configuration file is not modified:[Email protected] ~]# update-alternatives--config java650) this.width=650; "title=" 3118.tmp.jpg "style=" height:160px;width:737px "src=" http://s4.51cto.com/wyfs02/M00/ 89/20/wkiom1gicoew4dxbaaau_kx0tym965.jpg

port on which the MAC address is received and insert the CAM table entry. In this way, when receiving a data frame sent to the MAC address, you do not need to broadcast to all ports, but only send to this port. It should be noted that the data Frame Forwarding is based on the target MAC address to query the CAM table, while the learning of the CAM table is based on the source MAC address. The CAM table of vswitch dynamic learning is not static, but starts a timer. When the timer decreases to ze

What should I do if my daughter-in-law wants to switch to java Development ?, Daughter-in-law java I am a java developer who has been working for five years. My daughter-in-law is a software implementation engineer who has been married for nearly a year. These days, she suddenly told me that she wants to

; - } - + Switch(i) { - Case0: +SYSTEM.OUT.PRINTLN ("abc")); A Break; at Case1: -System.out.println ("Def"); - Break; - default: -SYSTEM.OUT.PRINTLN ("Default"); - } in } -}If switch passes in null, calling the Hashcode method on a null object at run time will appear nullpointerexception.If a

); //determining the loop for loop//declaration: A For loop is actually a simplification of the while loop, and the defined I only works in the loop body//and I can be reused in different for loops for(inti = 1; I ) {System.out.println ("i--" +i); } for(inti = 10; I >0; i--) {System.out.println ("i--" +i); }//If I have been defined outside the loop, it will also take effect outside the loop body! inty; for(y = ten; y ) {System.out.println (y); } System.out.p

Example of a switch statement in PHP, Phpswitch statement Switch is a switching statement, so many friends only know the simple switch switch statement usage, the following tutorial small series for you to introduce the switch us

Want to use Photoshop to design a circular profile switch, then take a look at the following tutorial, the production before we find some physical photos to analyze the texture of the switch, color performance and so on. Then decompose the switch to understand its structure. Then set the material for plastic, set a goo

: And then copy this layer, ctrl+t, and so on to scale to such a size Add a color of white, and then add a 1px gradient stroke: Then copy this layer, cancel all current styles, and then stretch to shape Then add a gradient style to the layer to shape the change in the light and shadow of the switch. Current effect: Now it's about to come out, and then draw a circle with a ci