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Kotlin Return and Jump

There are three jump expressions in Kotlin. These jump expressions are used for control the flow of program execution. These jump structures are:

  • break
  • continue
  • return

Break Expression

A break expression is used for terminate the nearest enclosing loop. It is almost used with if-else condition.

For example:

In the above example, for loop terminates its loop when if condition execute break expression.

Kotlin break example:



In the above example, when the value of i became equal to 3 and satisfy the if condition(i==3) than the break expression execute and terminate for loop.

Kotlin Labeled break 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 break expression is used to terminate the specific loop. This is done by using break expression with @ sign followed by label name (break@loop).

Kotlin labeled break example


i = 1 and j = 1
i = 1 and j = 2
i = 1 and j = 3
i = 2 and j = 1

In the above example, when the value of i became 2 and satisfy the if condition which execute break expression followed by labeled name. The break expression followed by labeled name terminates the body of label identifier.

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