Java StringBuilder appendCodePoint()用法及代码示例

StringBuilder类的appendCodePoint(int codePoint)方法是用于将codePoint参数的字符串表示形式附加到此序列的内置方法。
参数将附加到此StringBuilder内容，并且对象的长度会增加Character.charCount(codePoint)。效果与将参数int值转换为char数组，然后将该数组中的字符附加到此字符序列相同。

用法:

public StringBuilder appendCodePoint(int codePoint)

参数：此方法仅接受一个参数codePoint，该参数的int类型值是指Unicode代码点。
返回值：该方法返回引用此对象。

以下程序说明了java.lang.StringBuilder.appendCodePoint()方法：

示例1:

// Java praogram to illustrate the 
// appendCodePoint(int codePoint) 
  
import java.lang.*; 
  
public class Geeks { 
    public static void main(String[] args) 
    { 
  
        // create StringBuilder object 
        StringBuilder 
            str 
            = new StringBuilder("GeeksforGeeks"); 
        System.out.println("StringBuilder = "
                           + str); 
  
        // Append 'C'(67) to the String 
        str.appendCodePoint(67); 
  
        // Print the modified String 
        System.out.println("Modified StringBuilder = "
                           + str); 
    } 
}

输出：

StringBuilder = GeeksforGeeks
Modified StringBuilder = GeeksforGeeksC

示例2:

// Java praogram to illustrate the 
// appendCodePoint(int codePoint) 
  
import java.lang.*; 
  
public class Geeks { 
    public static void main(String[] args) 
    { 
  
        // create StringBuilder object 
        StringBuilder 
            str 
            = new StringBuilder("GeeksforGeeks"); 
        System.out.println("StringBuilder = "
                           + str); 
  
        // Append ', '(44) to the String 
        str.appendCodePoint(44); 
  
        // Print the modified String 
        System.out.println("Modified StringBuilder = "
                           + str); 
    } 
}

输出：

StringBuilder = GeeksforGeeks
Modified StringBuilder = GeeksforGeeks,

参考文献： https://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html#appendCodePoint(int)

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注：本文由纯净天空筛选整理自AmanSingh2210大神的英文原创作品 StringBuilder appendCodePoint() method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。