My second assignment

FindRange.java

@@ -1,16 +1,48 @@
-/*
- * File: FindRange.java
- * Name: 
- * Section Leader: 
- * --------------------
- * This file is the starter file for the FindRange problem.
- */
-
-import acm.program.*;
-
-public class FindRange extends ConsoleProgram {
-	public void run() {
-		/* You fill this in */
-	}
-}
-
+/*
+ * File: FindRange.java
+ * Name: 
+ * Section Leader: 
+ * --------------------
+ * This file is the starter file for the FindRange problem.
+ */
+
+import acm.program.*;
+
+public class FindRange extends ConsoleProgram {
+	public void run() {
+		/* 
+		 * This program finds the range of 
+		 * any set of numbers until the Sentinel
+		 * value is reached 
+		 */
+		println("This program finds the minimum and");
+		println("maximum values in a given set of numbers");
+
+
+
+
+
+
+		int min = 0;
+		int max = 0;
+		println("Enter a value");
+		while (true){
+
+			int val = readInt();
+			if (val == SENTINEL){
+				break;
+
+			}
+			else if(val < min){
+				min = val;
+			}
+			else if(val > max){
+				max = val;
+			}
+		}
+		println("The minimum value is " +min);
+		println("The maximum value is " +max);
+	}
+	private static final int SENTINEL = 20;
+}
+

Hailstone.java

@@ -1,16 +1,43 @@
-/*
- * File: Hailstone.java
- * Name: 
- * Section Leader: 
- * --------------------
- * This file is the starter file for the Hailstone problem.
- */
-
-import acm.program.*;
-
-public class Hailstone extends ConsoleProgram {
-	public void run() {
-		/* You fill this in */
-	}
-}
-
+/*
+ * File: Hailstone.java
+ * Name: 
+ * Section Leader: 
+ * --------------------
+ * This file is the starter file for the Hailstone problem.
+ */
+
+import acm.program.*;
+
+public class Hailstone extends ConsoleProgram {
+	public void run() {
+		/* The program computes the Hailstone's sequence of any number
+		 * entered by the user  
+		 */
+
+		println("...");
+		println("Enter any number to get the Hailstone sequence: ");
+		int x = readInt();
+		int y = 0;
+
+		while (x != 1) {
+
+			if (x % 2 == 0) {
+
+				println( "          " +x+ " is even, so i take half: " + x/2 );
+				x /= 2;
+				y++;
+
+			}
+			else{
+				println( "          " +x+ " is odd, so i compute 3x + 1: " + (3 * x + 1) );
+				x = 3 * x + 1;
+				y++;
+
+			}
+
+		}
+		println("...");
+		println ("It took " + y + " steps to arrive at 1");
+	}
+}
+

ProgramHierarchy.java

@@ -1,18 +1,18 @@
-/*
- * File: ProgramHierarchy.java
- * Name: 
- * Section Leader: 
- * ---------------------------
- * This file is the starter file for the ProgramHierarchy problem.
- */
-
-import acm.graphics.*;
-import acm.program.*;
-import java.awt.*;
-
-public class ProgramHierarchy extends GraphicsProgram {	
-	public void run() {
-		/* You fill this in. */
-	}
-}
-
+/*
+ * File: ProgramHierarchy.java
+ * Name: 
+ * Section Leader: 
+ * ---------------------------
+ * This file is the starter file for the ProgramHierarchy problem.
+ */
+
+import acm.graphics.*;
+import acm.program.*;
+import java.awt.*;
+
+public class ProgramHierarchy extends GraphicsProgram {	
+	public void run() {
+		/* You fill this in. */
+	}
+}
+

Pyramid.java

@@ -1,32 +1,30 @@
-/*
- * File: Pyramid.java
- * Name: 
- * Section Leader: 
- * ------------------
- * This file is the starter file for the Pyramid problem.
- * It includes definitions of the constants that match the
- * sample run in the assignment, but you should make sure
- * that changing these values causes the generated display
- * to change accordingly.
- */
-
-import acm.graphics.*;
-import acm.program.*;
-import java.awt.*;
-
-public class Pyramid extends GraphicsProgram {
-
-/** Width of each brick in pixels */
-	private static final int BRICK_WIDTH = 30;
-
-/** Width of each brick in pixels */
-	private static final int BRICK_HEIGHT = 12;
-
-/** Number of bricks in the base of the pyramid */
-	private static final int BRICKS_IN_BASE = 14;
-
-	public void run() {
-		/* You fill this in. */
-	}
-}
-
+
+ import acm.graphics.*;
+  import acm.program.*;
+  import java.awt.*;
+
+  public class Pyramid extends GraphicsProgram {
+  	private static final int BRICKS_IN_BASE = 32;
+  	private static final int BRICK_WIDTH = 20;
+  	private static final int BRICK_HEIGHT = 14;
+  	public void run() {
+ 		 /* You fill this in. */
+ 		double x = (getWidth() - BRICKS_IN_BASE * BRICK_WIDTH) / 2;
+ 		double y = getHeight() - BRICK_HEIGHT;
+ 		for (int row = 0; row < BRICKS_IN_BASE; row++) {
+ 			createRow(x, y, (BRICKS_IN_BASE - row));
+ 			y -= BRICK_HEIGHT;
+ 			x += BRICK_WIDTH / 2;
+ 		}
+	}
+	private void createRow(double x, double y, int bricks) {
+ 		for (int i = 0; i < bricks; i++) {
+ 			createBrick((x + i * BRICK_WIDTH), y);
+		}
+	}
+
+	private void createBrick(double x, double y) {
+ 		GRect rect = new GRect(x, y, BRICK_WIDTH, BRICK_HEIGHT);
+ 		add(rect);
+  	}
+  }

PythagoreanTheorem.java

@@ -1,15 +1,28 @@
-/*
- * File: PythagoreanTheorem.java
- * Name: 
- * Section Leader: 
- * -----------------------------
- * This file is the starter file for the PythagoreanTheorem problem.
- */
-
-import acm.program.*;
-
-public class PythagoreanTheorem extends ConsoleProgram {
-	public void run() {
-		/* You fill this in */
-	}
-}
+/*
+ * File: PythagoreanTheorem.java
+ * Name: 
+ * Section Leader: 
+ * -----------------------------
+ * This file is the starter file for the PythagoreanTheorem problem.
+ */
+
+import acm.program.*;
+
+public class PythagoreanTheorem extends ConsoleProgram {
+	public void run() {
+		/* You fill this in */
+		println("*********************************************************");
+		println("Enter the values of A and B to compute Pythagoras theorem");
+	int a = readInt ("A = ");
+		println("");
+	int b = readInt ("B = ");
+
+	int c = ((a*a) + (b*b));
+
+	double x = Math.sqrt (c);
+	println("");
+	println("The answer is " +x);
+	println("*********************************************************");
+
+	}
+}

Target.java

@@ -1,17 +1,42 @@
-/*
- * File: Target.java
- * Name: 
- * Section Leader: 
- * -----------------
- * This file is the starter file for the Target problem.
- */
-
-import acm.graphics.*;
-import acm.program.*;
-import java.awt.*;
-
-public class Target extends GraphicsProgram {	
-	public void run() {
-		/* You fill this in. */
-	}
-}
+/*
+ * File: Target.java
+ * Name: 
+ * Section Leader: 
+ * -----------------
+ * This file is the starter file for the Target problem.
+ */
+
+import acm.graphics.*;
+import acm.program.*;
+import java.awt.*;
+
+public class Target extends GraphicsProgram {	
+	public void run() {
+		/*
+		 * This program draws an archery target
+		 */
+		double inch2Pix = 72;
+
+		double maxiRadius = 1 * inch2Pix;
+		double mediRadius = 0.65 * inch2Pix;
+		double miniRadius = 0.30 * inch2Pix;
+
+		double x = getWidth()/2;
+		double y = getHeight()/2;
+
+		GOval maxiTarget = new GOval(x - maxiRadius, y - maxiRadius, 2 * maxiRadius, 2 * maxiRadius);
+		maxiTarget.setFilled(true);
+		maxiTarget.setColor(Color.RED);
+		add(maxiTarget);
+
+		GOval mediTarget = new GOval(x - mediRadius, y - mediRadius, 2 * mediRadius, 2 * mediRadius);
+		mediTarget.setFilled(true);
+		mediTarget.setColor(Color.WHITE);
+		add(mediTarget);
+
+		GOval miniTarget = new GOval(x - miniRadius, y - miniRadius, 2 * miniRadius, 2 * miniRadius);
+		miniTarget.setFilled(true);
+		miniTarget.setColor(Color.RED);
+		add(miniTarget);
+	}
+}