default: Executes if no case value matches the expression. Examples Example 1: Basic Usage publicclassSwitchExample{publicstaticvoidmain(String[]args){int day=3;switch(day){case1:System.out.println("Monday");break;case2:System.out.println("Tuesday");break;case3:System.out.println("Wednesday"...
class Main { public static void main(String[] args) { int expression = 2; // switch statement to check size switch (expression) { case 1: System.out.println("Case 1"); // matching case case 2: System.out.println("Case 2"); case 3: System.out.println("Case 3"); default: Syste...
switch(expression){casevalue1:// 代码块break;casevalue2:// 代码块break;default:// 默认代码块} ...
JDK 13is now available and brings an improved version of a new feature first introduced inJDK 12: theswitchexpression. In order to enable it, we need to pass–enable-previewto the compiler. 5.1. The NewswitchExpression Let’s see what the newswitchexpression looks like when switching over m...
switch(expression){casex:// code blockbreak;casey:// code blockbreak;default:// code block} This is how it works: Theswitchexpression is evaluated once. The value of the expression is compared with the values of eachcase. If there is a match, the associated block of code is executed. ...
2.2.1 基本switch结构 switch语句计算一个表达式,然后将表达式的值与每个case标签后的常量值进行比较。 // 语法 switch(expression) { caseconstantValue1: // statements for value1 break;// 强烈推荐,除非有意穿透 caseconstantValue2...
1. Switch Statements 1.1. Syntax The general form of a switch statement is – switch(expression){caselabelOne:statements;break;caselabelTwo:statements;break;caselabelThree:statements;break;default:statements;} The expression value must be one of the following 6 types: ...
getExpression() Returns the expression for the switch expression. Methods declared in interface com.sun.source.tree.Tree accept, getKindMethod Details getExpression ExpressionTree getExpression() Returns the expression for the switch expression. Returns: the expression getCases List<? extends Case...
java填空在switch(expression)语句中,expression的数据类型不能是___。 为什么? 答案 不能为引用类型、自定义类型。基本类型中,只能为整型,且有大小限制 1、整型:最大为int,可以是byte,char 2、还可以为枚举类型,这个可以是自定义的枚举类型。1、2以外的都不行相关推荐 1java填空在switch(expression)语句中,expre...
switch (expression) { case value1: // 当 expression 等于 value1 时执行的代码 break; case value2: // 当 expression 等于 value2 时执行的代码 break; // 可以有任意数量的 case 语句 shaoxing.huishou.la: // 当 expression 不等于任何 case 值时执行的代码 ...