admin管理员组

文章数量:1611943

StringBuilder类的capacity()方法用于返回StringBUilder对象的当前容量。容量是可用于插入新字符的存储量。

用法:

public int capacity()

返回值：此方法返回StringBuilder类的当前容量。

下面的程序演示StringBuilder类的capacity()方法：

示例1:

// Java program to demonstrate

// the capacity() Method.

class GFG {

public static void main(String[] args)

{

// create a StringBuilder object,

// default capacity will be 16

StringBuilder str = new StringBuilder();

// get default capacity

int capacity = str.capacity();

System.out.println("Deafult Capacity of StringBuilder = "

+ capacity);

// add the String to StringBuilder Object

str.append("Geek");

// get capacity

capacity = str.capacity();

// print the result

System.out.println("StringBuilder = " + str);

System.out.println("Current Capacity of StringBuilder = "

+ capacity);

}

}

输出：

Deafult Capacity of StringBuilder = 16

StringBuilder = Geek

Current Capacity of StringBuilder = 16

示例2:

// Java program to demonstrate

// the capacity() Method.

class GFG {

public static void main(String[] args)

{

// create a StringBuilder object

// with a String passed as parameter

StringBuilder

str

= new StringBuilder("WelcomeGeeks");

// get capacity

int capacity = str.capacity();

// print the result

System.out.println("StringBuilder = " + str);

System.out.println("Capacity of StringBuilder = "

+ capacity);

}

}

输出：

StringBuilder = WelcomeGeeks

Capacity of StringBuilder = 28

本文标签： 示例代码capacityJavaJavaCapacity

版权声明：本文标题：java capacity_Java StringBuilder capacity()用法及代码示例 内容由热心网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：https://m.elefans.com/dongtai/1728619456a1166159.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。