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Kotlin continue Jump Structure


Kotlin, continue statement is used to repeat the loop. It continues the current flow of the program and skips the remaining code at specified condition.
The continue statement within a nested loop only affects the inner loop.


For example
for(..){  
       //body of for above if  
       if(checkCondition){  
           continue  
       }  
//body of for below if  
}  
for(..){  
       //body of for above if  
       if(checkCondition){  
           continue  
       }  
//body of for below if  
}  

In the above example, for loop repeat its loop when if condition execute continue. The continue statement makes repetition of loop without executing the below code of if condition.


Kotlin continue example
fun main(args: Array< String>) {  
        for (i in 1..3) {  
            println("i = $i")  
            if (j == 2) {  
                continue  
            }  
            println("this is below if")  
        }  
}  
fun main(args: Array< String>) {  
        for (i in 1..3) {  
            println("i = $i")  
            if (j == 2) {  
                continue  
            }  
            println("this is below if")  
        }  
}  			  

Output:
i = 1
this is below if
i = 2
i = 3
this is below if

Kotlin Labeled continue Expression


Labeled is the form of identifier followed by the @ sign, for example abc@, test@. To make an expression as label, we just put a label in front of expression.
Kotlin, labeled continue expression is used for repetition of specific loop (labeled loop). This is done by using continue expression with @ sign followed by label name (continue@labelname).


Kotlin labeled continue example
fun main(args: Array< String>) {  
    labelname@ for (i in 1..3) {  
    for (j in 1..3) {  
        println("i = $i and j = $j")  
        if (i == 2) {  
            continue@labelname  
        }  
        println("this is below if")  
    }  
 }  
}  
fun main(args: Array< String>) {  
    labelname@ for (i in 1..3) {  
    for (j in 1..3) {  
        println("i = $i and j = $j")  
        if (i == 2) {  
            continue@labelname  
        }  
        println("this is below if")  
    }  
 }  
}    

Output:
i = 1 and j = 1
this is below if
i = 1 and j = 2
this is below if
i = 1 and j = 3
this is below if
i = 2 and j = 1
i = 3 and j = 1
this is below if
i = 3 and j = 2
this is below if
i = 3 and j = 3
this is below if


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