Java Switch 语句Java Switch 语句使用switch语句从多个要执行的代码块中选择一个执行。 语法 switch(expression) { case x: // 代码块 break; case y: // 代码块 break; default: // 代码块 } 工作原理:switch 表达式计算一次 case 将表达式的值与每种情况的值进行比较 如果存在匹配项,则执行关联的代码块...
A unique characteristic of the switch statement in Java is the ‘fall through’ behavior. When a match is found in the case values, and there’s no break statement to terminate the current case, Java will execute all subsequent cases until it encounters a break statement or reaches the end ...
SyntaxGet your own Java Server switch(expression) { case x: // code block break; case y: // code block break; default: // code block } This is how it works:The switch expression is evaluated once. The value of the expression is compared with the values of each case. If there is ...
It is possible to have multiple values for each case in the switch statement:Syntax switch expression { case x,y: // code block if expression is evaluated to x or y case v,w: // code block if expression is evaluated to v or w case z: ... default: // code block if...
或者，如果您只想获取大写字母在字母表中的位置，请使用以下命令：
在Switch语句中,表达式的值将与每个case的值进行比较。如果找到匹配的case,将执行相应的代码块,并通过break语句跳出Switch语句。如果没有找到匹配的case,将执行默认的代码块。 Switch语句的优势在于可以简化多个if-else语句的逻辑,使代码更加清晰和易读。 Switch语句适用于以下场景: 根据不同的条件执行不同的操作。 处理...
Java Switch语句-“或”/“and”可能吗? 、、 我实现了一个字体系统,它通过char switch语句找出要使用的字母。我的字体图像中只有大写字母。我需要让它,例如,'a‘和'A’都有相同的输出。而不是2倍的案例数量,它可能是如下所示:case 'a' & 'A': /*get the 'A' image*/; break; case 'b' & 'B...
switch (expression) { case label1: //code block break; case label2: //code block; break; case label3: //code block break; default: //code block } This is how it works:The expression is evaluated once The value of the expression is compared with the values of each case If there ...
The switch statement evaluates an expression. The value of the expression is then compared with the values of each case in the structure. If there is a match, the associated block of code is executed. The switch statement is often used together with a break or a default keyword (or both)...
intday=4;switch(day){case1:Console.WriteLine("Monday");break;case2:Console.WriteLine("Tuesday");break;case3:Console.WriteLine("Wednesday");break;case4:Console.WriteLine("Thursday");break;case5:Console.WriteLine("Friday");break;case6:Console.WriteLine("Saturday");break;case7:Console.WriteLine(...