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Commit837f635

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Merge pull requestTheAlgorithms#769 from abhijay94/Development
Added adapter pattern and its test case
2 parents13a0883 +c31c39a commit837f635

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8 files changed

+69
-3
lines changed

8 files changed

+69
-3
lines changed

‎src/main/java/com/conversions/BinaryToHexadecimal.java‎

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@@ -36,7 +36,7 @@ public String binToHex(String binStr) {
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Stringhex ="";
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intcurrentBit;
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BigIntegertenValue =newBigInteger("10");
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BigIntegertenValue =BigInteger.valueOf(10);
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while (binary.compareTo(BigInteger.ZERO) !=0) {
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// to store decimal equivalent of number formed by 4 decimal digits
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intcode4 =0;

‎src/main/java/com/conversions/DecimalToHexadecimal.java‎

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publicclassDecimalToHexadecimal {
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privatestaticfinalchar[]hexChars = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
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privatestaticfinalBigIntegervalueHex =newBigInteger("16");
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privatestaticfinalBigIntegervalueHex =BigInteger.valueOf(16);
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/**
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* This method converts and decimal number to a Hexadecimal number

‎src/main/java/com/conversions/DecimalToOctal.java‎

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publicclassDecimalToOctal {
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privatestaticfinalchar[]octalChars = {'0','1','2','3','4','5','6','7'};
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privatestaticfinalBigIntegervalueOctal =newBigInteger("8");
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privatestaticfinalBigIntegervalueOctal =BigInteger.valueOf(8);
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/**
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* This method converts and decimal number to a octal number
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packagesrc.main.java.com.designpatterns.structural.adapter;
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publicclassBugattiVeyronimplementsMovable {
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@Override
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publicdoublegetSpeed() {
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return268;
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}
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}
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packagesrc.main.java.com.designpatterns.structural.adapter;
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publicinterfaceMovable {
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// Returns the speed of the movable in MPH
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doublegetSpeed();
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}
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packagesrc.main.java.com.designpatterns.structural.adapter;
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/**
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* An Adapter pattern acts as a connector between two incompatible interfaces that otherwise cannot be connected
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* directly. An Adapter wraps an existing class with a new interface so that it becomes compatible with the client’s
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* interface.
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* <br>
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* The main motive behind using this pattern is to convert an existing interface into another interface that the client
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* expects. It’s usually implemented once the application is designed.
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*
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* @see <a href="https://en.wikipedia.org/wiki/Adapter_pattern">Adapter Pattern</a>
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*/
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publicinterfaceMovableAdapter {
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// Returns the speed of the movable in KPH
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doublegetSpeed();
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}
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packagesrc.main.java.com.designpatterns.structural.adapter;
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publicclassMovableAdapterImplimplementsMovableAdapter {
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privateMovableluxuryCars;
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publicMovableAdapterImpl(MovableluxuryCars) {
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this.luxuryCars =luxuryCars;
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}
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@Override
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publicdoublegetSpeed() {
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returnconvertMPHtoKMPH(luxuryCars.getSpeed());
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}
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privatedoubleconvertMPHtoKMPH(doublemph) {
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returnmph *1.60934;
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}
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}
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packagesrc.test.java.com.designpatterns.structural.adapter;
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importorg.junit.Test;
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importsrc.main.java.com.designpatterns.structural.adapter.BugattiVeyron;
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importsrc.main.java.com.designpatterns.structural.adapter.Movable;
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importsrc.main.java.com.designpatterns.structural.adapter.MovableAdapter;
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importsrc.main.java.com.designpatterns.structural.adapter.MovableAdapterImpl;
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importstaticorg.junit.Assert.assertEquals;
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publicclassMovableAdapterTest {
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@Test
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publicvoidtestMovableAdapter() {
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MovablebugattiVeyron =newBugattiVeyron();
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MovableAdapterbugattiVeyronAdapter =newMovableAdapterImpl(bugattiVeyron);
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assertEquals(bugattiVeyronAdapter.getSpeed(),431.30312,0.00001);
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}
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}

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