hello-algo/codes/kotlin/chapter_stack_and_queue/stack.kt
curtishd 6069cb89a7
Add kotlin code for the chapter of stack and queue (#1162)
* modified array.kt.

* feat(kotlin): add kotlin code for the chapter of stack and queue.

* modified array.kt

* modified comments.
2024-03-23 19:33:18 +08:00

39 lines
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798 B
Kotlin

/**
* File: stack.kt
* Created Time: 2024-01-25
* Author: curtishd (1023632660@qq.com)
*/
package chapter_stack_and_queue
import java.util.*
/* Driver Code */
fun main() {
/* 初始化栈 */
val stack = Stack<Int>()
/* 元素入栈 */
stack.push(1)
stack.push(3)
stack.push(2)
stack.push(5)
stack.push(4)
println("栈 stack = $stack")
/* 访问栈顶元素 */
val peek = stack.peek()
println("栈顶元素 peek = $peek")
/* 元素出栈 */
val pop = stack.pop()
println("出栈元素 pop = $pop,出栈后 stack = $stack")
/* 获取栈的长度 */
val size = stack.size
println("栈的长度 size = $size")
/* 判断是否为空 */
val isEmpty = stack.isEmpty()
println("栈是否为空 = $isEmpty")
}