Properties类的list(PrintStream)方法用于将此Properties列表打印到指定的输出流,并作为参数传递。该方法可用于调试目的,因为它有助于查看stream.0上的Properties元素。
用法:
public void list(PrintStream out)
参数:此方法接受参数PrintStream out,该参数是要在其上打印Properties元素的输出流。
返回值:此方法仅打印元素,不返回任何内容。
下面的程序显示了int list(PrintStream)方法的实现。
示例1:
// Java code to show the implementation of
// list(PrintStream) method
import java.util.*;
public class GfG {
// Main method
public static void main(String[] args)
{
// Create a properties and add some values
Properties properties = new Properties();
properties.put("Pen", "10");
properties.put("Book", "500");
properties.put("Clothes", "400");
properties.put("Mobile", "5000");
// Print Properties details
System.out.println("Properties: "
+ properties.toString());
System.out.println("listing out the Properties: ");
properties.list(System.out);
}
}
输出:
Properties: {Book=500, Mobile=5000, Pen=10, Clothes=400} listing out the Properties: -- listing properties -- Book=500 Pen=10 Mobile=5000 Clothes=400
示例2:
// Java program to demonstrate
// list(PrintStream) method.
import java.util.*;
public class GFG {
// Main method
public static void main(String[] args)
{
// Create a properties and add some values
Properties properties = new Properties();
// Inserting elements into the properties
properties.put("Geeks", "10");
properties.put("4", "15");
properties.put("Geeks", "20");
properties.put("Welcomes", "25");
properties.put("You", "30");
// Print Properties details
System.out.println("Properties: "
+ properties.toString());
System.out.println("listing out the Properties: ");
properties.list(System.out);
}
}
输出:
Properties: {You=30, Welcomes=25, 4=15, Geeks=20} listing out the Properties: -- listing properties -- You=30 4=15 Welcomes=25 Geeks=20
参考:https://docs.oracle.com/javase/9/docs/api/java/util/Properties.html#list-java.io.PrintStream-
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注:本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 Properties list(PrintStream) 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。