diff --git a/NumberUtilities.java b/NumberUtilities.java index 1d5ba50..b55bd31 100644 --- a/NumberUtilities.java +++ b/NumberUtilities.java @@ -3,30 +3,59 @@ public class NumberUtilities { - public static String getRange(int stop) { - return null; - } + public static String getRange(int stop) { + String count = ""; + for (int i = 0; i < stop; i++) { + count = count.concat(Integer.toString(i)); + } + + return count; +} public static String getRange(int start, int stop) { - return null; + String count = ""; + for (int i = start; i < stop; i++) { + count = count.concat(Integer.toString(i)); + } + return count; } public static String getRange(int start, int stop, int step) { - return null; - } + String count = ""; + for (int i = start; i < stop; i+=step) { + count = count.concat(Integer.toString(i)); + } + return count; + } + public static String getEvenNumbers(int start, int stop) { - return null; - } - - + String count = ""; + for (int i = start; i < stop; i++) { + if (i % 2 == 0) { + count = count.concat(Integer.toString(i)); + } + } + return count; + } public static String getOddNumbers(int start, int stop) { - return null; - } - + String count = ""; + for (int i = start; i < stop; i++) { + if (i % 2 != 0) { + count = count.concat(Integer.toString(i)); + } + } + return count; + } public static String getExponentiations(int start, int stop, int exponent) { - return null; - } -} + String count = ""; + int result = 0; + for (int i = start; i <= stop; i++) { + result = (int)Math.pow(i, exponent); + count = count.concat(Integer.toString(result)); + } + return count; + } +} diff --git a/TableUtilities.java b/TableUtilities.java index 03bf004..73d464e 100644 --- a/TableUtilities.java +++ b/TableUtilities.java @@ -2,14 +2,21 @@ public class TableUtilities { public static String getSmallMultiplicationTable() { - return null; + return getMultiplicationTable(5); } public static String getLargeMultiplicationTable() { - return null; + return getMultiplicationTable(10); } public static String getMultiplicationTable(int tableSize) { - return null; - } + String count = ""; + for (int i = 1; i <= tableSize; i++) { + for (int j = 1; j <= tableSize; j++) { + count = count + String.format("%3d ", i*j) + "|"; + } + count = count + "\n"; + } + return count; + } } diff --git a/TriangleUtilities.java b/TriangleUtilities.java index 8755fd0..d008858 100644 --- a/TriangleUtilities.java +++ b/TriangleUtilities.java @@ -3,19 +3,45 @@ public class TriangleUtilities { public static String getRow(int numberOfStars) { - return null; + String count = ""; + for (int i = 0; i < numberOfStars; i++) { + count = count + "*"; + } + return count; } public static String getTriangle(int numberOfRows) { - return null; - } + String count = ""; + for (int i = 1; i <= numberOfRows; i++) { + for(int j = i; j > 0; j--) { + + count = count + "*"; + } + count = count + "\n"; + } + return count; + +} public static String getSmallTriangle() { - return null; - } + String count = ""; + for (int i = 0; i <= 4; i++) { + for (int j = 1; j <= i; j++) { + // column is less than equal to row + count = count + "*"; + } + count = count + "\n"; + return getTriangle(4); + } + return count; + } + + public static String getLargeTriangle() { - return null; + return getTriangle(9); } } + + diff --git a/package.bluej b/package.bluej index 028bdd0..753a7aa 100644 --- a/package.bluej +++ b/package.bluej @@ -1,79 +1,103 @@ #BlueJ package file -dependency1.from=NumberUtilitiesTest -dependency1.to=NumberUtilities +dependency1.from=TableUtilitiesTest +dependency1.to=TableUtilities dependency1.type=UsesDependency dependency2.from=TriangleUtilitiesTest dependency2.to=TriangleUtilities dependency2.type=UsesDependency -dependency3.from=TableUtilitiesTest -dependency3.to=TableUtilities +dependency3.from=NumberUtilitiesTest +dependency3.to=NumberUtilities dependency3.type=UsesDependency -editor.fx.0.height=722 -editor.fx.0.width=800 -editor.fx.0.x=537 -editor.fx.0.y=28 -objectbench.height=164 -objectbench.width=484 +editor.fx.0.height=0 +editor.fx.0.width=0 +editor.fx.0.x=0 +editor.fx.0.y=0 +objectbench.height=226 +objectbench.width=1896 package.divider.horizontal=0.6 -package.divider.vertical=0.7560627674750356 -package.editor.height=523 -package.editor.width=382 -package.editor.x=20 -package.editor.y=57 -package.frame.height=759 -package.frame.width=508 +package.divider.vertical=0.7562761506276151 +package.editor.height=716 +package.editor.width=1806 +package.editor.x=0 +package.editor.y=0 +package.frame.height=1056 +package.frame.width=1936 package.numDependencies=3 -package.numTargets=6 +package.numTargets=10 package.showExtends=true package.showUses=true project.charset=UTF-8 -readme.height=58 +readme.height=60 readme.name=@README -readme.width=47 +readme.width=49 readme.x=10 readme.y=10 -target1.height=50 -target1.name=TableUtilitiesTest -target1.showInterface=false -target1.type=UnitTestTargetJunit4 -target1.width=110 -target1.x=100 -target1.y=270 +target1.height=70 +target1.name=README-TriangleUtilities.md +target1.type=TextTarget +target1.width=180 +target1.x=10 +target1.y=210 +target10.association=TriangleUtilitiesTest +target10.height=50 +target10.name=TriangleUtilities +target10.showInterface=false +target10.type=ClassTarget +target10.width=120 +target10.x=70 +target10.y=190 target2.height=50 -target2.name=TriangleUtilitiesTest +target2.name=TableUtilitiesTest target2.showInterface=false target2.type=UnitTestTargetJunit4 -target2.width=120 +target2.width=110 target2.x=100 -target2.y=160 -target3.association=TableUtilitiesTest +target2.y=270 target3.height=50 -target3.name=TableUtilities +target3.name=TriangleUtilitiesTest target3.showInterface=false -target3.type=ClassTarget -target3.width=110 -target3.x=70 -target3.y=300 -target4.association=NumberUtilitiesTest -target4.height=50 -target4.name=NumberUtilities -target4.showInterface=false -target4.type=ClassTarget -target4.width=120 -target4.x=80 -target4.y=70 +target3.type=UnitTestTargetJunit4 +target3.width=120 +target3.x=100 +target3.y=160 +target4.height=70 +target4.name=README-TableUtilities.md +target4.type=TextTarget +target4.width=160 +target4.x=10 +target4.y=210 +target5.association=TableUtilitiesTest target5.height=50 -target5.name=NumberUtilitiesTest +target5.name=TableUtilities target5.showInterface=false -target5.type=UnitTestTargetJunit4 -target5.width=120 -target5.x=110 -target5.y=40 -target6.association=TriangleUtilitiesTest -target6.height=50 -target6.name=TriangleUtilities -target6.showInterface=false -target6.type=ClassTarget -target6.width=120 -target6.x=70 -target6.y=190 +target5.type=ClassTarget +target5.width=110 +target5.x=70 +target5.y=300 +target6.height=70 +target6.name=README-NumberUtilities.md +target6.type=TextTarget +target6.width=180 +target6.x=10 +target6.y=360 +target7.association=NumberUtilitiesTest +target7.height=50 +target7.name=NumberUtilities +target7.showInterface=false +target7.type=ClassTarget +target7.width=120 +target7.x=80 +target7.y=70 +target8.height=70 +target8.name=README.md +target8.type=TextTarget +target8.width=120 +target8.x=80 +target8.y=430 +target9.height=50 +target9.name=NumberUtilitiesTest +target9.showInterface=false +target9.type=UnitTestTargetJunit4 +target9.width=120 +target9.x=110 +target9.y=40