Java Fifth Job first question: Extract the date from the string "Gengdan computer Java20170320". Public classHomework1 {/** * @paramargs*/ Public Static voidMain (string[] args) {//TODO auto-generated Method StubString str1= "Gengdan computer Java20170320"; System.out.println (Str1.substring (9,17)); }} The second question: replace Java in the string "Gengdan computer Java20170320" with EE Public classHOMEWORK2 {/** * @paramargs*/ Public Static voidMain (string[] args) {//TODO auto-generated Method StubString str= "Gengdan computer Java20170320"; String Newstr=str.replaceall ("Ava", "2EE"); System.out.println ("Replaced result:" +newstr); }} Third question: Clear the Gengdan computer Java20170320"All the spaces in the. Public classHomework4 {/** * @paramargs*/ Public Static voidMain (string[] args) {//TODO auto-generated Method StubString str= "Gengdan computer Java 20170320"; String Newstr=str.replaceall ("", "" "); System.out.println ("Replaced result:" +newstr); The fourth question: Extract the person's birthday from any given ID number. Public classHomework5 {/** * @paramargs*/ Public Static voidMain (string[] args) {//TODO auto-generated Method StubString str= "110106199712194510"; System.out.println ("This person's birthday is::" +str.substring (10,14)); }}
Java Fifth job