JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to set file permissions in java?


Below example shows how to set permissions to a file.


package com.java2novice.files;

import java.io.File;

public class MyFilePermissions {

	public static void main(String a[]){
		
		File scriptFile = new File("/home/java2novice/test.sh");
		System.out.println("Current file permissions:");
		System.out.println("Can Execute? "+scriptFile.canExecute());
		System.out.println("Can Read? "+scriptFile.canRead());
		System.out.println("Can Write? "+scriptFile.canWrite());
		scriptFile.setExecutable(true);
		scriptFile.setReadable(true);
		scriptFile.setWritable(true);
		System.out.println("Now file permissions:");
		System.out.println("Can Execute? "+scriptFile.canExecute());
		System.out.println("Can Read? "+scriptFile.canRead());
		System.out.println("Can Write? "+scriptFile.canWrite());
	}
}

Output:
Current file permissions:
Can Execute? false
Can Read? true
Can Write? false
Now file permissions:
Can Execute? true
Can Read? true
Can Write? true
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  20. How to create temporary file in java?
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  22. How to delete temporary file in java?
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Knowledge Centre
What is System.out in Java
In System.out, out is an instance of PrintStream. It is a static member variable in System class. This is called standard output stream, connected to console.
Famous Quotations
Insanity: doing the same thing over and over again and expecting different results.
-- Albert Einstein

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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