Java 中的 Level toString()方法，示例

原文:https://www . geesforgeks . org/level-tostring-method-in-Java-with-examples/

java.util.logging.Level 的 toString() 方法用于获取代表该级别的字符串值。此方法返回此级别的字符串表示形式。

语法:

public String toString()

参数:此方法不接受任何内容。

返回:这个方法返回这个级别的字符串表示..

下面的程序说明了 toString()方法: 程序 1:

// Java program to illustrate toString() method

import java.util.logging.Level;
import java.util.logging.Logger;

public class GFG {

    public static void main(String[] args)
    {

        // Create a Logger
        Logger logger
            = Logger.getLogger(
                        String.class.getName())
                  .getParent();

        // Get level of logger
        Level level
            = logger.getLevel();

        // get string value of level
        String val = level.toString();

        // print result
        System.out.println("toString = "
                           + val);
    }
}

Output:

toString = INFO

程序 2:

// Java program to illustrate toString() method

import java.util.logging.Level;

public class GFG {

    public static void main(String[] args)
    {

        // Get level of logger
        Level level
            = Level.parse("SEVERE");

        // get string representation
        String value = level.toString();

        // print result
        System.out.println("toString = "
                           + value);
    }
}

Output:

toString = SEVERE

参考文献:https://docs . Oracle . com/javase/10/docs/API/Java/util/logging/level . html # toString()

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