lab & assignment

assignments/assignment1/leapYear.java

@@ -6,10 +6,10 @@ public class leapYear {
         System.out.println("Enter year!");
         int year = scan.nextInt();
 
-        if (year%4 == 0 || year%100 == 0 && year%400 == 0 && year > 1581) {
+        if (year < 1582){
+        System.out.println("ENTER MORE THAN YEAR 1581!");
+        } else if (year%4 == 0 || year%100 == 0 && year%400 == 0) {
             System.out.println("The year "+year+" is a leap year!");
-        } else if (year < 1582){
-            System.out.println("ENTER MORE THAN YEAR 1581!");
         } else {
             System.out.println("The year: "+year+" isn't leap year");
         }

labs/lab2/Average.java

@@ -0,0 +1,24 @@
+// ******************************************************************* 
+// Average.java 
+// 
+// Read three integers from the user and print their average 
+// ******************************************************************* 
+import java.util.Scanner; 
+public class Average 
+{ 
+ public static void main(String[] args) 
+ { 
+ int val1, val2, val3; 
+ double average; 
+ Scanner scan = new Scanner(System.in) ; 
+ // get three values from user 
+ System.out.println("Please enter three integers and " + 
+ "I will compute their average"); 
+ val1 = scan.nextInt();
+ val2 = scan.nextInt();
+ val3 = scan.nextInt();
+
+ average = (val1 + val2 + val3)/3;
+ System.out.println(average);
+ }
+}

labs/lab2/Errors.java

@@ -0,0 +1,20 @@
+// File: Errors.java 
+// Purpose: A program with lots of syntax errors 
+// Correct all of the errors (STUDY the program carefully!!) 
+import java.util.Scanner; 
+public class Errors 
+{ 
+ public static void main (String[] args) 
+ { 
+ String Name; // Name of the user 
+ int number; 
+ int numSq; 
+ Scanner scan = new Scanner(System.in); 
+ System.out.println ("Enter your name, please: ");
+ Name = scan.nextLine(); 
+ System.out.println ("What is your favorite number?"); 
+ number = scan.nextInt(); 
+ numSq = number * number; 
+ System.out.println (Name+", the square of your number is " + numSq); 
+}
+}

labs/lab2/Names.java

@@ -0,0 +1,23 @@
+// *************************************************************** 
+// Names.java 
+// 
+// Prints a list of student names with their hometowns 
+// and intended major 
+// *************************************************************** 
+public class Names 
+{ 
+ // ------------------------ 
+ // main prints the list 
+ // ------------------------ 
+ public static void main (String[] args) 
+ { 
+ System.out.println (); 
+ System.out.println ("\tName\t\tHometown\t\tMajor"); 
+ System.out.println ("\t====\t\t========\t\t====="); 
+ System.out.println ("\tSally\t\tRoanoke\t\t\tComputer Major"); 
+ System.out.println ("\tAlexander\tWashington\t\tMath Major");
+ System.out.println ("\tKoray\t\tAltinsoy\t\tComputer Major");
+ System.out.println ("\tBurak\t\tKarakilic\t\tComputer Major");
+ System.out.println (); 
+ } 
+}

labs/lab2/Table.java

@@ -0,0 +1,16 @@
+public class Table {
+    public static void main(String[] args) {
+        System.out.println("///////////////////\\\\\\\\\\\\\\\\\\\\\\\\");
+        System.out.println("==\tStudent Points\t==");
+        System.out.println("\\\\\\\\\\\\\\\\\\\\\\\\///////////////////");
+        System.out.println();
+        System.out.println("Name\t\tLab\tBonus\tTotal");
+        System.out.println("----\t\t---\t-----\t-----");
+
+        System.out.println("Joe\t\t43\t7\t50");
+        System.out.println("William\t\t50\t8\t58");
+        System.out.println("Mary Sue\t39\t10\t49");
+        System.out.println("Koray\t\t90\t10\t100");
+        System.out.println("Burak\t\t10\t10\t20");
+    }
+}

labs/lab2/maths.java

@@ -0,0 +1,18 @@
+public class maths {
+    public static void main(String args[]) {
+    int a = 3, b = 10, c = 7; 
+    double w = 12.9, y = 3.2; 
+
+    System.out.println("a + b * c ="+(a+b*c));
+    System.out.println("a - b - c ="+(a-b-c));
+    System.out.println("a / b ="+(a/b));
+    System.out.println("b / a ="+(b/a));
+    System.out.println("a - b / c="+(a-b/c));
+    System.out.println("w / y="+(w/y));
+    System.out.println("y / w="+(y/w));
+    System.out.println("a + w / b="+(a+w/b));
+    System.out.println("a % b / y="+(a%b/y));
+    System.out.println("b % a="+(b%a));
+    System.out.println("w % y="+(w%y));
+    }
+}

labs/lab2/plusTest.java

@@ -0,0 +1,22 @@
+// ******************************************************************* 
+// PlusTest.java 
+// 
+// Demonstrate the different behaviors of the + operator 
+// ******************************************************************* 
+public class PlusTest 
+{ 
+ // ------------------------------------------------- 
+ // main prints some expressions using the + operator 
+ // ------------------------------------------------- 
+ public static void main (String[] args) 
+ { 
+ System.out.println ("This is a long string that is the " + 
+ "concatenation of two shorter strings."); 
+ System.out.println ("The first computer was invented about " + 55 + 
+ " years ago."); 
+ System.out.println ("8 plus 5 is " + 8 + 5); 
+ System.out.println ("8 plus 5 is " + (8 + 5)); 
+ System.out.println (8 + 5 + " equals 8 plus 5."); 
+ System.out.println ("Ten robins plus 13 canaries is "+(10+13)+" birds.");
+ } 
+}