when expression matches the supplied argument with all the branches one by one until a match is found. Once a match is found, it executes the matched branch. If none of the branches match, the else branch is executed. In the above example, all the branches contain a single statement. But...
funmain(args:Array<String>){valnumber =101if(number%2==0) println("Even Number") println("Out Of If statement") } 输出: Out Of If statement 2. Kotlin -If..Else表达式 如果条件为true时,我们需要执行某些操作,并且条件为false时我们需要执行不同的操作,使用if else表达式。例如:如果我通过考试,...
The statement contains an expression 50 + 25 that returns an integer value 75. So, expressions are part of the statements.In Kotlin, if can be used as an expression. While using if as an expression, the else branch is mandatory to avoid compiler error.In addition, we can assign the ...
if (a < b) a else breturns a or bIn Kotlin, if is an expression unlike Java println("Hello world")returns Unit Example of statements in the Kotlin language Statementsare everything that make up a complete unit of execution. A statement is always a top-level element in its enclosing blo...
if (age > 18) { println("You can obtain a driving licence") } else { println("You cannot obtain a driving licence") } This condition tests if the age is greater than 18. Kotlin if else if Multiple branches of conditions can be created with if else if syntax. ...
For example, if an object is checked for a certain type within an if statement, Kotlin automatically casts it to that type within the if block. This eliminates the need for explicit type casting. Dart, on the other hand, does not have the same level of smart casting as Kotlin. In ...
With aninsert ... returning ...statement, we can insert records to the database, and at the same time, retrieve some generated columns. For example: valid=database.insertReturning(Employees,Employees.id) { set(it.name,"pedro") set(it.job,"engineer") set(it.salary,1500) set(it.hireDat...
KT-18693 Optimize in-expression with optimizable range in RHS KT-18721 Improve code generation for if-in-primitive-literal expression ('if (expr in low .. high)') KT-18818 Optimize null cases in when statement to avoid Intrinsics usage KT-18834 Do not create ranges for 'x ...
Short summary: Kotlin 1.6 will warn about thewhenstatement with an enum, sealed, or Boolean subject being non-exhaustive Deprecation cycle: 1.6.0: introduce a warning when thewhenstatement with an enum, sealed, or Boolean subject is non-exhaustive (error in the progressive mode) ...
Replaces an if/else statement with simpler and more readable code: if(firstExpression) {// if/elsevariable = secondExpression; }else{ variable = thirdExpression; }// ternary operatorvariable = (firstExpression) ? secondExpression : thirdExpression; ...