Java File isAbsolute()方法
java.io.File.isAbsolute() 检查此抽象路径名是否是绝对的。
1 语法
public boolean isAbsolute()
2 参数
无
3 返回值
如果此抽象路径名是绝对的,则该方法返回true,否则该方法返回false。
4 示例
package com.yiidian;
/**
* 一点教程网: http://www.yiidian.com
*/
/**
* java.io.File.isAbsolute()方法的例子
*/
import java.io.File;
public class Demo {
public static void main(String[] args) {
File f = null;
String path;
boolean bool = false;
try {
// create new file
f = new File("c:\\test.txt");
// true if the file path is absolute, else false
bool = f.isAbsolute();
// get the path
path = f.getPath();
// prints
System.out.println(path+" is absolute? "+ bool);
// create new file
f = new File("test.txt");
// true if the file path is absolute, else false
bool = f.isAbsolute();
// get the path
path = f.getPath();
// prints
System.out.print(path+" is absolute? "+bool);
} catch(Exception e) {
// if any error occurs
e.printStackTrace();
}
}
}
输出结果为:
c:\test.txt is absolute? true
test.txt is absolute? false
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