Java中的 CompoundName getSuffix() 方法和示例
javax.naming.CompoundName 类的getSuffix()方法用于获取复合名称对象,其组件由该复合名称中的组件的后缀组成。我们需要从这个复合名称对象中提取 Suffix 的位置作为参数传递。返回的复合名称对象和此复合名称对象共享相同的语法。如果我们对此复合名称进行任何不会影响返回的名称的更改,反之亦然。
句法:
public Name getSuffix(int posn)
参数:此方法接受 posn,它是要开始的组件的从 0 开始的索引。必须在 [0, size()] 范围内。
返回值:此方法返回一个复合名称,该名称由 [posn, size()) 范围内的索引处的组件组成。如果 posn 等于 size(),则返回一个空的复合名称。
异常:如果 posn 超出指定范围,则此方法抛出 ArrayIndexOutOfBoundsException。
下面的程序说明了 CompoundName.getSuffix() 方法:
方案一:
// Java program to demonstrate
// CompoundName.getSuffix()
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@3@4@5@6@7",
props);
// apply getSuffix()
CompoundName newCompoundName
= (CompoundName)
CompoundName1.getSuffix(3);
// print value
System.out.println(
"New CompoundName Object: "
+ newCompoundName);
}
}
输出:
New CompoundName Object: 4@5@6@7
方案二:
// Java program to demonstrate
// CompoundName.getSuffix() 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);
// apply getSuffix()
CompoundName newCompoundName
= (CompoundName)
CompoundName1.getSuffix(8);
// print value
System.out.println(
"New CompoundName Object: "
+ newCompoundName);
}
}
输出:
New CompoundName Object: x/f
参考资料:https://docs.oracle.com/javase/10/docs/api/javax/naming/CompoundName.html#getSuffix(int)