在Java中使用示例堆栈 removeAllElements() 方法
Java.util.Stack.removeAllElements()方法用于从该堆栈中删除所有组件并将其大小设置为零。
句法:
Stack.removeAllElements()
参数:该方法不带任何参数
返回值:该函数不返回任何值。
下面的程序说明了Java.util.Stack.removeAllElements() 方法。
示例 1:
// Java code to illustrate removeAllElements()
import java.util.*;
public class GFG {
public static void main(String args[])
{
// Creating an empty Stack
Stack stack = new Stack();
// Use add() method to add elements into the Stack
stack.add("Welcome");
stack.add("To");
stack.add("Geeks");
stack.add("4");
stack.add("Geeks");
// Displaying the Stack
System.out.println("Stack: " + stack);
// removeAllElementsing the Stack
// using removeAllElements() method
stack.removeAllElements();
// Displaying the final Stack after removeAllElementsing
System.out.println("The final Stack: " + stack);
}
}
输出:
Stack: [Welcome, To, Geeks, 4, Geeks]
The final Stack: []
示例 2:
// Java code to illustrate removeAllElements()
import java.util.*;
public class GFG {
public static void main(String args[])
{
// Creating an empty Stack
Stack stack = new Stack();
// Use add() method to add elements into the Queue
stack.add(10);
stack.add(15);
stack.add(30);
stack.add(20);
stack.add(5);
// Displaying the Stack
System.out.println("Stack: " + stack);
// removeAllElementsing the Stack
// using removeAllElements() method
stack.removeAllElements();
// Displaying the final Stack after removeAllElementsing
System.out.println("The final Stack: " + stack);
}
}
输出:
Stack: [10, 15, 30, 20, 5]
The final Stack: []