lab-03:

- Count letters class. Class to test and handle exceptions.

lab-03/.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml

lab-03/.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

lab-03/.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/lab-03.iml" filepath="$PROJECT_DIR$/lab-03.iml" />
+    </modules>
+  </component>
+</project>

lab-03/.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>

lab-03/lab-03.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

lab-03/src/CountLetters.java

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+import java.util.Scanner;
+
+public class CountLetters {
+    public static void main(String args[]){
+        int[] counts = new int[26];
+        Scanner in = new Scanner(System.in);
+        System.out.print("Enter a single word (Letters only, please): ");
+        String word = in.nextLine();
+        word = word.toUpperCase();
+
+        int j = 0;
+        try{
+            for (int i = 0; i < word.length(); i++) {
+                j++;
+                counts[word.charAt(i)-'A']++;
+            }
+        }
+        catch (IndexOutOfBoundsException e){
+            System.out.println("Found number: " + word.charAt(j-1) );
+        }
+
+        for (int i = 0; i < counts.length; i++){
+            if (counts[i] != 0)
+                System.out.println((char)(i + 'A') + ": " + counts[i]);
+        }
+
+    }
+}