Restore

Labs/Lab2/Lab2Part2_2230026071/Question1/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

Labs/Lab2/Lab2Part2_2230026071/Question1/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Question1</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

Labs/Lab2/Lab2Part2_2230026071/Question1/.settings/org.eclipse.core.resources.prefs

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+eclipse.preferences.version=1
+encoding/<project>=UTF-8

Labs/Lab2/Lab2Part2_2230026071/Question1/src/SumAndAverage.java

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+
+public class SumAndAverage {
+
+	public static void main(String[] args) {
+		int sum = 0; // Store the accumulated sum init to 0
+		double average; // average in double
+		int lowerbound = 1; // The lowerbound to sum
+		int upperbound = 100; // The upperbound to sum
+		
+		int cntOdd = 0;
+		// Use a for-loop to sum from lowerbound to upperbound
+		for(int number = lowerbound; number <= upperbound; number+=2) { //only odd num: increment = 2
+			sum += number; // same as "sum = sum + number"
+			++cntOdd;
+		}
+		// Compute average in double. Beware that int/int produces int.
+		average = (double) sum / cntOdd;
+		// Print sum and average
+		System.out.println("The sum is " + sum);
+		System.out.println("The average is " + average);
+		
+		// 6.1 while loop
+		System.out.println("---- While-loop:");
+		sum = 0;
+		int number = lowerbound;
+		int cnt_7 = 0;
+		while(number <= upperbound) {
+			if(number % 7 == 0) { //when can divided by 7, add sum and count
+				sum += number;
+				++cnt_7;
+			}
+			number++;
+		}
+		// Compute average in double. Beware that int/int produces int.
+		average = (double) sum / cnt_7;
+		// Print sum and average
+		System.out.println("The sum is " + sum);
+		System.out.println("The average is " + average);
+		
+		// 6.2 do-while
+		System.out.println("---- Do-while:");
+		sum = 0; // Reset sum
+		number = lowerbound;
+		do {
+			sum += number * number;
+			number++;
+		} while(number <= upperbound);
+		// Compute average in double. Beware that int/int produces int.
+		average = (double) sum / (upperbound - lowerbound + 1);
+		// Print sum and average
+		System.out.println("The sum is " + sum);
+		System.out.println("The average is " + average);
+
+		
+	}
+
+}