Java CompositeName startsWith()用法及代码示例

javax.naming.CompositeName类的startsWith()方法用于检查作为参数传递的复合名称是否为此复合名称的前缀。如果此复合名称对象以“ X”结尾，则复合名称“ X”是该复合名称的前缀。如果X为null或不是复合名称对象，则返回false。

用法:

public boolean startsWith(Name n)

参数：此方法接受Name对象n，该对象可能是要检查的复合名称。

返回值：如果n是CompositeName且是此复合名称的前缀，则此方法返回true，否则返回false。

下面的程序说明CompositeName.startsWith()方法：
程序1:

// Java program to demonstrate 
// CompositeName.startsWith() 
  
import java.util.Properties; 
import javax.naming.CompositeName; 
import javax.naming.InvalidNameException; 
  
public class GFG { 
    public static void main(String[] args) 
        throws InvalidNameException 
    { 
  
        // create composite name object 
        CompositeName CompositeName1 
            = new CompositeName("1:2:4:6"); 
        CompositeName CompositeName2 
            = new CompositeName("2:4:6"); 
  
        // apply startsWith() 
        boolean Flag 
            = CompositeName1 
                  .startsWith(CompositeName2); 
  
        // print value 
        if (Flag) 
            System.out.println( 
                "CompositeName1 starts with "
                + " CompositeName2"); 
        else
            System.out.println( 
                "CompositeName1 not starts with "
                + " CompositeName2"); 
    } 
}

输出：

CompositeName1 not starts with  CompositeName2

程序2:

// Java program to demonstrate 
// CompositeName.startsWith() method 
  
import java.util.Properties; 
import javax.naming.CompositeName; 
import javax.naming.InvalidNameException; 
  
public class GFG { 
    public static void main(String[] args) 
        throws InvalidNameException 
    { 
  
        // create composite name object 
        CompositeName CompositeName1 
            = new CompositeName( 
                "ca/eaaa/daaa/vaaa/a/b/z/y/x/f"); 
        CompositeName CompositeName2 
            = new CompositeName( 
                "ca/eaaa/daaa"); 
  
        // apply startsWith() 
        boolean Flag 
            = CompositeName1 
                  .startsWith(CompositeName2); 
  
        // print value 
        if (Flag) 
            System.out.println( 
                "CompositeName1 starts with "
                + " CompositeName2"); 
        else
            System.out.println( 
                "CompositeName1 not starts with "
                + " CompositeName2"); 
    } 
}

输出：

CompositeName1 starts with  CompositeName2

参考文献：https://docs.oracle.com/javase/10/docs/api/javax/naming/CompositeName.html#startsWith(javax.naming.Name)

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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 CompositeName startsWith() 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。