Denne klassen brukes til å representere en JAR-filoppføring. Konstruktører:
JarEntry(JarEntry eat):
Oppretter en ny JarEntry med felt hentet fra det angitte JarEntry-objektet.
JarEntry(strengnavn):
Oppretter en ny JarEntry for det angitte JAR-filoppføringsnavnet.
JarEntry(ZipEntry med):
Oppretter en ny JarEntry med felt hentet fra det angitte ZipEntry-objektet. Metoder:
Attributter getAttributes() :
Returns the Manifest Attributes for this entry or null if none.
Syntax : public Attributes getAttributes() throws IOException Returns: the Manifest Attributes for this entry or null if none
Sertifikat[] getCertificates() :
Returns the Certificate objects for this entry or null if none.
Syntax : public Certificate[] getCertificates() Returns: the Certificate objects for this entry or null if none.
CodeSigner[] getCodeSigners() :
Returns the CodeSigner objects for this entry or null if none.
Syntax : public CodeSigner[] getCodeSigners() Returns: the CodeSigner objects for this entry or null if none.
Metoder som er arvet fra klassen java.util.zip.ZipEntry clone getComment getCompressedSize getCrc getExtra getMethod getName getSize getTime hashCode isDirectory setComment setCompressedSize setCrc setExtra setMethod setSize setTime toString Metoder arvet fra klassen java.lang.Object lik sluttføre getClass varsle varsleAlle vent vent vent Merk: Programmene vil ikke kjøre på online IDE da de ikke kan lese filen Program 1: Java
//Java program demonstrating JarEntry methodimportjava.io.FileInputStream;importjava.io.IOException;importjava.io.PrintStream;importjava.util.jar.JarEntry;importjava.util.jar.JarInputStream;classJarEntryDemo{publicstaticvoidmain(String[]args)throwsIOException{FileInputStreamfis=newFileInputStream('codechecker.jar');JarInputStreamjis=newJarInputStream(fis);JarEntryje=jis.getNextJarEntry();PrintStreamout=System.out;//illustrating getAttributesout.println(je.getAttributes());//illustrating getCodeSignerout.println(je.getCodeSigners());//illustrating getCertificatesout.println(je.getCertificates());}}
Program 2: Java
//Java program demonstrating JarEntry methodpackagejava.util.jar;importjava.io.IOException;importjava.util.zip.ZipEntry;importjava.security.CodeSigner;importjava.security.cert.Certificate;publicclassJarEntryextendsZipEntry{Attributesattr;Certificate[]certs;CodeSigner[]signers;publicJarEntry(Stringname){super(name);}publicJarEntry(ZipEntryze){super(ze);}publicJarEntry(JarEntryje){this((ZipEntry)je);this.attr=je.attr;this.certs=je.certs;this.signers=je.signers;}publicAttributesgetAttributes()throwsIOException{returnattr;}publicCertificate[]getCertificates(){returncerts==null?null:(Certificate[])certs.clone();}publicCodeSigner[]getCodeSigners(){returnsigners==null?null:(CodeSigner[])signers.clone();}}