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mLine 3:
Line 3: − sudo apt-get update+ − sudo apt-get install oracle-java8-installer</nowiki>+ Line 262:
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→Classes and Objects
===With apt===
===With apt===
<nowiki>sudo apt-add-repository ppa:webupd8team/java
<nowiki>sudo apt-add-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer</nowiki>
Also ensure your JAVA_HOME variable has been set to:
Also ensure your JAVA_HOME variable has been set to:
</source>
</source>
==== ArrayList ====
====ArrayList====
<syntaxhighlight lang="java">
<syntaxhighlight lang="java">
ArrayList<String> items = new ArrayList<String>()
ArrayList<String> items = new ArrayList<String>()
return name + ' (' + age + ')'
return name + ' (' + age + ')'
}
}
}
class Student extends Person {
String college;
}
}
person1.speak("My name is: ");
person1.speak("My name is: ");
System.out.println("Years to retirement= " + person1.yearsToRetire());
System.out.println("Years to retirement= " + person1.yearsToRetire());
System.out.println(person1 instanceof Person); // true
System.out.println(person1 instanceof Object); // true
System.out.println(person1 instanceof Student); // false
}
}
}
}