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Completed lab #45

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72 changes: 62 additions & 10 deletions NumberUtilities.java
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Original file line number Diff line number Diff line change
@@ -1,32 +1,84 @@



public class NumberUtilities {

public static String getRange(int stop) {
return null;
String outcome = "";
String convert;

for (int i = 0; i < stop; i++) {
convert = Integer.toString(i);
outcome += convert;
}

return outcome;
}

public static String getRange(int start, int stop) {
return null;
String outcome = "";
String convert;

for (int i = start; i < stop; i++) {
convert = Integer.toString(i);
outcome += convert;
}

return outcome;
}


public static String getRange(int start, int stop, int step) {
return null;
String outcome = "";
String convert;

for (int i = start; i < stop;) {
convert = Integer.toString(i);
outcome += convert;
i += step;
}

return outcome;
}

public static String getEvenNumbers(int start, int stop) {
return null;
String outcome = "";
String convert;

for (int i = start; i < stop; i++) {
if (i % 2 == 0) {
convert = Integer.toString(i);
outcome += convert;
}
}

return outcome;
}


public static String getOddNumbers(int start, int stop) {
return null;
String outcome = "";
String convert;

for (int i = start; i < stop; i++) {
if (i % 2 != 0) {
convert = Integer.toString(i);
outcome += convert;
}
}

return outcome;
}


public static String getExponentiations(int start, int stop, int exponent) {
return null;
String outcome = "";
String convert;
int exponentials;

for (int i = start; i <= stop; i++) {
exponentials = (int)Math.pow(i, exponent);
convert = Integer.toString(exponentials);
outcome += convert;
}

return outcome;
}
}
}
99 changes: 92 additions & 7 deletions TableUtilities.java
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Original file line number Diff line number Diff line change
@@ -1,15 +1,100 @@


public class TableUtilities {
public class TableUtilities {
public static String getSmallMultiplicationTable() {
return null;
String outcome = "";
String convert;
int multiple;

for (int i = 1; i <= 5; i++) {
for (int j = 1; j <= 5; j++) {
multiple = i * j;
convert = Integer.toString(multiple);

if (multiple >= 10) {
if (j == 5) {
outcome += " " + convert + " |\n";
} else {
outcome += " " + convert + " |";
}
} else {
if (j == 5) {
outcome += " " + convert + " |\n";
} else {
outcome += " " + convert + " |";
}
}
}
}

return outcome;
}

public static String getLargeMultiplicationTable() {
return null;
String outcome = "";
String convert;
int multiple;

for (int i = 1; i <= 10; i++) {
for (int j = 1; j <= 10; j++) {
multiple = i * j;
convert = Integer.toString(multiple);

if (multiple >= 100) {
if (j == 10) {
outcome += "" + convert + " |\n";
} else {
outcome += "" + convert + " |";
}
} else if (multiple >= 10){
if (j == 10) {
outcome += " " + convert + " |\n";
} else {
outcome += " " + convert + " |";
}
} else {
if (j == 10) {
outcome += " " + convert + " |\n";
} else {
outcome += " " + convert + " |";
}
}
}
}

return outcome;
}

public static String getMultiplicationTable(int tableSize) {
return null;
String outcome = "";
String convert;
int multiple;

for (int i = 1; i <= tableSize; i++) {
for (int j = 1; j <= tableSize; j++) {
multiple = i * j;
convert = Integer.toString(multiple);

if (multiple >= 100) {
if (j == tableSize) {
outcome += "" + convert + " |\n";
} else {
outcome += "" + convert + " |";
}
} else if (multiple >= 10){
if (j == tableSize) {
outcome += " " + convert + " |\n";
} else {
outcome += " " + convert + " |";
}
} else {
if (j == tableSize) {
outcome += " " + convert + " |\n";
} else {
outcome += " " + convert + " |";
}
}
}
}

return outcome;
}
}
}
42 changes: 33 additions & 9 deletions TriangleUtilities.java
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Original file line number Diff line number Diff line change
@@ -1,21 +1,45 @@


public class TriangleUtilities {
public class TriangleUtilities {

public static String getRow(int numberOfStars) {
return null;
String outcome = "";

for (int i = 0; i < numberOfStars; i++) {
outcome += "*";
}

return outcome;
}

public static String getTriangle(int numberOfRows) {
return null;
}
String outcome = "";
String stars = "*";

for (int i = 1; i <= numberOfRows; i++) {
outcome += stars.repeat(i) + "\n";
}

return outcome;
}

public static String getSmallTriangle() {
return null;
String outcome = "";
String stars = "*";

for (int i = 1; i <= 4; i++) {
outcome += stars.repeat(i) + "\n";
}

return outcome;
}

public static String getLargeTriangle() {
return null;
String outcome = "";
String stars = "*";

for (int i = 1; i <= 9; i++) {
outcome += stars.repeat(i) + "\n";
}

return outcome;
}
}
}
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