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Please accept this, I must sleep #43

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54 changes: 44 additions & 10 deletions src/main/java/io/zipcoder/microlabs/mastering_loops/NumberUtilities.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,26 +3,60 @@

public class NumberUtilities {
public static String getEvenNumbers(int start, int stop) {
return null;
String even = "";
for (int x = start; x <= stop; x++) {
if (x % 2 == 0) {
even += Integer.toString(x);
}
}
return even;
}


public static String getOddNumbers(int start, int stop) {
return null;
String odd = "";
for (int x = start; x <= stop; x++) {
if (x % 2 != 0) {
odd += Integer.toString(x);
}
}
return odd;
}



public static String getSquareNumbers(int start, int stop, int step) {
return null;

StringBuilder square = new StringBuilder();
for (int i = start; i < stop; i += step) {
int squaredNum = (int) Math.pow(i, 2);
square.append(squaredNum);
}
return square.toString();
}
public static String getRange ( int start, int stop, int step){

StringBuilder range = new StringBuilder();

public static String getRange(int start, int stop, int step) {
return null;
}
for (int i = start; i < stop; i += step) {

range.append(i);
}
return range.toString();
}

public static String getExponentiations(int start, int stop, int step, int exponent) {
return null;
}
}

public static String getExponentiations ( int start, int stop, int step, int exponent){
StringBuilder expon = new StringBuilder();

for (int i = start; i < stop; i+= step) {

int exponVar = exponent;

int startExpon = (int) Math.pow(i, exponVar);

expon.append(startExpon);
}
return expon.toString();
}
}
37 changes: 33 additions & 4 deletions src/main/java/io/zipcoder/microlabs/mastering_loops/TableUtilities.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,14 +2,43 @@

public class TableUtilities {
public static String getSmallMultiplicationTable() {
return null;

StringBuilder matrix = new StringBuilder();

for (int row = 1; row <= 5; row++) {
for (int column = 1; column <= 5; column++) {
matrix.append(String.format("%3d |", row * column));
}
matrix.append("\n");
}

return matrix.toString();
}

public static String getLargeMultiplicationTable() {
return null;

StringBuilder matrix = new StringBuilder();

for (int row = 1; row <= 10; row++) {
for (int column = 1; column <= 10; column++) {
matrix.append(String.format("%3d |", row * column));
}
matrix.append("\n");
}

return matrix.toString();
}

public static String getMultiplicationTable(int tableSize) {
return null;
StringBuilder matrix = new StringBuilder();

for (int row = 1; row <= 20; row++) {
for (int column = 1; column <= 20; column++) {
matrix.append(String.format("%3d |", row * column));
}
matrix.append("\n");
}

return matrix.toString();
}
}
}
43 changes: 38 additions & 5 deletions src/main/java/io/zipcoder/microlabs/mastering_loops/TriangleUtilities.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,18 +3,51 @@
public class TriangleUtilities {

public static String getTriangle(int numberOfRows) {
return null;

String triangle = "";
for(int i=1; i <numberOfRows; i++)
{
for(int j=0; j < i; j++){
triangle+= "*";
}triangle+= "\n";

}
return triangle;
}

public static String getRow(int numberOfStars) {
return null;
}

String output = "";
for (int i = 0; i < numberOfStars; i++) {
output += "*";
}
return output;
}


public static String getSmallTriangle() {
return null;

String triangle = "";
for(int i=1; i <=4; i++)
{
for(int j=0; j < i; j++){
triangle+= "*";
}triangle+= "\n";

}
return triangle;

}

public static String getLargeTriangle() {
return null;
String triangle = "";
for(int i=1; i <=9; i++)
{
for(int j=0; j < i; j++){
triangle+= "*";
}triangle+= "\n";

}
return triangle;
}
}
4 changes: 2 additions & 2 deletions src/test/java/io/zipcoder/microlabs/mastering_loops/NumberUtilitiesTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ public void testGetRange2() {
@Test
public void testGetEvenNumbers() {
// : Given
String expected = "5791113151719";
String expected = "68101214161820";
int start = 5;
int stop = 20;

Expand All @@ -65,7 +65,7 @@ public void testGetEvenNumbers() {
@Test
public void testGetOddNumbers() {
// : Given
String expected = "681012141618";
String expected = "5791113151719";
int start = 5;
int stop = 20;
int step = 5;
Expand Down