Java CompoundName startsWith()用法及代碼示例

javax.naming.CompoundName類的startsWith()方法用於檢查作為參數傳遞的化合物名稱是否為此化合物名稱的前綴。如果此複合名稱對象以“ X”結尾，則複合名稱“ X”是該複合名稱的前綴。如果X為null或不是複合名稱對象，則返回false。

用法:

public boolean startsWith(Name n)

參數：此方法接受n，n是要檢查的可能為空的化合物名稱。

返回值：如果n是CompoundName並且是該化合物名稱的前綴，則此方法返回true，否則返回false。

以下示例程序旨在說明CompoundName.startsWith()方法：
程序1:

// Java program to demonstrate 
// CompoundName.startsWith() 
  
import java.util.Properties; 
import javax.naming.CompoundName; 
import javax.naming.InvalidNameException; 
  
public class GFG { 
    public static void main(String[] args) 
        throws InvalidNameException 
    { 
  
        // need properties for CompoundName 
        Properties props = new Properties(); 
        props.put("jndi.syntax.separator", ":"); 
        props.put("jndi.syntax.direction", 
                  "left_to_right"); 
  
        // create compound name object 
        CompoundName CompoundName1 
            = new CompoundName( 
                "1:2:4:6", props); 
        CompoundName CompoundName2 
            = new CompoundName( 
                "2:4:6", props); 
  
        // apply startsWith() 
        boolean Flag 
            = CompoundName1 
                  .startsWith(CompoundName2); 
  
        // print value 
        if (Flag) 
            System.out.println( 
                "CompoundName1 starts with "
                + " CompoundName2"); 
        else
            System.out.println( 
                "CompoundName1 not starts with "
                + " CompoundName2"); 
    } 
}

輸出：

CompoundName1 not starts with  CompoundName2

程序2:

// Java program to demonstrate 
// CompoundName.startsWith() method 
  
import java.util.Properties; 
import javax.naming.CompoundName; 
import javax.naming.InvalidNameException; 
  
public class GFG { 
    public static void main(String[] args) 
        throws InvalidNameException 
    { 
  
        // need properties for CompoundName 
        Properties props = new Properties(); 
        props.put("jndi.syntax.separator", "/"); 
        props.put("jndi.syntax.direction", 
                  "left_to_right"); 
  
        // create compound name object 
        CompoundName CompoundName1 
            = new CompoundName( 
                "c/e/d/v/a/b/z/y/x/f", 
                props); 
        CompoundName CompoundName2 
            = new CompoundName( 
                "c/e/d", 
                props); 
  
        // apply startsWith() 
        boolean Flag 
            = CompoundName1 
                  .startsWith(CompoundName2); 
  
        // print value 
        if (Flag) 
            System.out.println( 
                "CompoundName1 starts with "
                + " CompoundName2"); 
        else
            System.out.println( 
                "CompoundName1 not starts with "
                + " CompoundName2"); 
    } 
}

輸出：

CompoundName1 starts with  CompoundName2

參考文獻：https://docs.oracle.com/javase/10/docs/api/javax/naming/CompoundName.html#startsWith(javax.naming.Name)

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注：本文由純淨天空篩選整理自AmanSingh2210大神的英文原創作品 CompoundName startsWith() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。