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mLine 3:
Line 3: − sudo apt-get update+ − sudo apt-get install oracle-java8-installer</nowiki>+ Line 431:
Line 431: − + Line 506:
Line 506: − + + + + + + + + + + + + + + + + + + + + + + + + +
→Map
===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:
</syntaxhighlight>
</syntaxhighlight>
=== Map ===
===Map===
Key - Value Pair
Key - Value Pair
}
}
}
}
</source>
</source><syntaxhighlight lang="java">
import java.util.HashMap;
import java.util.Map;
public class MapRunner {
public static void main(String[] args){
String str = "Text to count words and letters";
Map<Character, Integer> occurances = new HashMap<>();
char[] chars = str.toCharArray();
for (char character:characters){
Integer integer = occurances.get(character);
if (integer == null) {
occurances.put(character, 1);
} else {
occurrances.put(character, integer + 1);
}
System.out.println(occurrances);
}
}
}
</syntaxhighlight><br />
==Setters and 'this'==
==Setters and 'this'==
<source lang="java">
<source lang="java">