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Commit132060f

Browse files
authored
Merge branch 'Development' into Development
2 parents4fd7698 +04f6924 commit132060f

27 files changed

+633
-513
lines changed

‎src/main/java/com/conversions/AnyBaseToDecimal.java

Lines changed: 7 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -3,6 +3,7 @@
33
publicclassAnyBaseToDecimal {
44
/**
55
* This method produces a decimal value of any given input number of any base
6+
*
67
* @param inpNum String of which we need the decimal value and base in integer format
78
* @return string format of the decimal value
89
*/
@@ -12,28 +13,28 @@ public String convertToDecimal(String inpNum, int base) {
1213
intnum =0;
1314
intpow =1;
1415

15-
for (inti=len-1;i>=0;i--) {
16+
for (inti =len -1;i >=0;i--) {
1617
if (valOfChar(inpNum.charAt(i)) >=base) {
1718
return"Invalid Number";
1819
}
19-
num +=valOfChar(inpNum.charAt(i))*pow;
20+
num +=valOfChar(inpNum.charAt(i)) *pow;
2021
pow *=base;
2122
}
2223
returnString.valueOf(num);
2324
}
2425

2526
/**
2627
* This method produces integer value of the input character and returns it
28+
*
2729
* @param c Char of which we need the integer value of
2830
* @return integer value of input char
2931
*/
3032

3133
privatestaticintvalOfChar(charc) {
3234
if (c >='0' &&c <='9') {
33-
return (int)c -'0';
34-
}
35-
else {
36-
return (int)c -'A' +10;
35+
return (int)c -'0';
36+
}else {
37+
return (int)c -'A' +10;
3738
}
3839
}
3940
}
Lines changed: 26 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
1+
packagesrc.main.java.com.conversions;
2+
3+
/**
4+
* Convert the binary number into gray code
5+
*/
6+
publicclassBinaryToGray {
7+
8+
/**
9+
* convert the binary number into gray code
10+
*
11+
* @param binaryCode binary number
12+
* @return grayCode return as string
13+
*/
14+
publicStringbinaryToGray(StringbinaryCode) {
15+
StringBuildergrayCode =newStringBuilder(Character.toString(binaryCode.charAt(0)));
16+
17+
for (inti =0;i <binaryCode.length() -1;i++) {
18+
if (binaryCode.charAt(i) ==binaryCode.charAt(i +1))
19+
grayCode.append("0");
20+
else
21+
grayCode.append("1");
22+
}
23+
returngrayCode.toString();
24+
}
25+
26+
}

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

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,7 @@ public class BinaryToHexadecimal {
1111
* hm to store hexadecimal codes for binary numbers
1212
* within the range: 0000 to 1111 i.e. for decimal numbers 0 to 15
1313
*/
14-
privatestaticMap<Integer,String>hmHexadecimal =newHashMap<>(16);
14+
privatestaticMap<Integer,String>hmHexadecimal =newHashMap<>(16);
1515

1616
static {
1717
inti;

‎src/main/java/com/conversions/DecimalToAnyBase.java

Lines changed: 8 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -3,23 +3,24 @@
33
importjava.util.ArrayList;
44

55
publicclassDecimalToAnyBase {
6+
67
/**
78
* This method produces a String value of any given input decimal in any base
8-
* @param inp Decimal of which we need the value in base in String format
9+
*
10+
* @param inp Decimal of which we need the value in base in String format
911
* @param base base in which we want the decimal value to be converted into
1012
* @return string format of the converted value in the given base
1113
*/
12-
1314
publicStringconvertToAnyBase(intinp,intbase) {
1415
ArrayList<Character>charArr =newArrayList<>();
1516

1617
while (inp >0) {
17-
charArr.add(reVal(inp%base));
18+
charArr.add(reVal(inp %base));
1819
inp /=base;
1920
}
2021

2122
StringBuilderstr =newStringBuilder(charArr.size());
22-
for(Characterch:charArr) {
23+
for(Characterch:charArr) {
2324
str.append(ch);
2425
}
2526

@@ -28,14 +29,15 @@ public String convertToAnyBase(int inp, int base) {
2829

2930
/**
3031
* This method produces character value of the input integer and returns it
32+
*
3133
* @param num integer of which we need the character value of
3234
* @return character value of input integer
3335
*/
3436

3537
privatecharreVal(intnum) {
3638
if (num >=0 &&num <=9)
37-
return (char)(num +'0');
39+
return (char)(num +'0');
3840
else
39-
return (char)(num -10 +'A');
41+
return (char)(num -10 +'A');
4042
}
4143
}

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

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -3,15 +3,16 @@
33
importjava.math.BigInteger;
44

55
publicclassDecimalToHexadecimal {
6-
privatestaticfinalcharhexChars[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
6+
privatestaticfinalchar[]hexChars= {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
77
privatestaticfinalBigIntegervalueHex =newBigInteger("16");
88

99
/**
1010
* This method converts and decimal number to a Hexadecimal number
11+
*
1112
* @param decimalStr
1213
* @return hexadecimal number
1314
*/
14-
publicStringdecimalToHex(StringdecimalStr){
15+
publicStringdecimalToHex(StringdecimalStr){
1516
BigIntegerdecimal =newBigInteger(decimalStr);
1617

1718
intrem;

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

Lines changed: 4 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3,20 +3,21 @@
33
importjava.math.BigInteger;
44

55
publicclassDecimalToOctal {
6-
privatestaticfinalcharoctalChars[] = {'0','1','2','3','4','5','6','7'};
6+
privatestaticfinalchar[]octalChars= {'0','1','2','3','4','5','6','7'};
77
privatestaticfinalBigIntegervalueOctal =newBigInteger("8");
88

99
/**
1010
* This method converts and decimal number to a octal number
11+
*
1112
* @param decimalStr
1213
* @return octal number
1314
*/
14-
publicStringdecimalToOctal(StringdecimalStr){
15+
publicStringdecimalToOctal(StringdecimalStr){
1516
BigIntegerdecimal =newBigInteger(decimalStr);
1617

1718
intrem;
1819
Stringoctal ="";
19-
while(decimal.compareTo(BigInteger.ZERO) >0) {
20+
while(decimal.compareTo(BigInteger.ZERO) >0) {
2021
rem =decimal.mod(valueOctal).intValueExact();
2122
octal =octalChars[rem] +octal;
2223
decimal =decimal.divide(valueOctal);

‎src/main/java/com/dataStructures/BinaryTree.java

Lines changed: 32 additions & 26 deletions
Original file line numberDiff line numberDiff line change
@@ -2,39 +2,42 @@
22

33
/**
44
* Binary tree for general value type, without redundancy
5-
* @author RICARDO
5+
*
66
* @param <T> root data
77
*/
8+
89
publicclassBinaryTree<TextendsComparable> {
910
privatefinalTdata;
10-
privateBinaryTreeright,// the upper binary tree
11-
left;// the lower binary tree
11+
privateBinaryTreeright,// the upper binary tree
12+
left;// the lower binary tree
1213

1314
publicBinaryTree(Tdata) {
1415
this.data =data;
1516
}
1617

1718
@Override
18-
publicStringtoString(){
19+
publicStringtoString(){
1920
returnthis.data.toString();
2021
}
21-
22+
2223
/**
2324
* inserts a new value in it's correspondant place
24-
* @param newDataValue value of the new banary tree to add on this tree
25+
*
26+
* @param newDataValue value of the new binary tree to add on this tree
2527
*/
26-
publicvoidinsert(TnewDataValue){
28+
publicvoidinsert(TnewDataValue){
2729
this.insert(newBinaryTree(newDataValue));
2830
}
29-
31+
3032
/**
3133
* inserts a new binary tree in it's correspondant place
32-
* @param newData new value to add on this tree
34+
*
35+
* @param newData new value to add on this tree
3336
*/
34-
publicvoidinsert(BinaryTreenewData){
35-
37+
publicvoidinsert(BinaryTreenewData){
38+
3639
intcpr =newData.data.compareTo(this.data);//new value comparission respect to actual value
37-
40+
3841
if (cpr <0)
3942
if (this.left ==null)
4043
this.setLeft(newData);
@@ -51,12 +54,13 @@ else if (cpr > 0)
5154

5255
/**
5356
* search and specific value on the tree
54-
* @param data Searched value
55-
* @return Binary tree wich contains the value, null if it doesn't exist
57+
*
58+
* @param data Searched value
59+
* @return Binary tree which contains the value, null if it doesn't exist
5660
*/
57-
publicBinaryTreesearch(Tdata){
61+
publicBinaryTreesearch(Tdata){
5862
intcpr =data.compareTo(this.data);//new value comparission respect to actual value
59-
63+
6064
if (cpr <0) {
6165
if (this.left ==null)
6266
returnnull;//the value doesn't exist
@@ -65,43 +69,45 @@ public BinaryTree search(T data){
6569
if (cpr >0) {
6670
if (this.right ==null)
6771
returnnull;//the value doesn't exist
68-
returnthis.right.search(data);
72+
returnthis.right.search(data);
6973
}
7074
returnthis;
7175
}
72-
76+
7377
/**
7478
* Checks if the data value exist in the tree
79+
*
7580
* @param data data to be searched
7681
* @return true if this tree contains the data value, false if not.
7782
*/
78-
publicbooleancontains(Tdata){
83+
publicbooleancontains(Tdata){
7984
returnthis.search(data) !=null;
8085
}
81-
86+
8287
/**
8388
* uses recursive black magic to print this tree in console
89+
*
8490
* @param tabCounter prev tabs
8591
*/
86-
privatevoidprint(inttabCounter){
92+
privatevoidprint(inttabCounter){
8793
for (inti =0;i <tabCounter;i++)
8894
System.out.print("\t");
89-
95+
9096
System.out.println(this);
91-
97+
9298
if (this.left !=null)
9399
this.left.print(tabCounter +1);//it can't be ++ , pls don't change it
94100
if (this.right !=null)
95101
this.right.print(tabCounter +1);//it can't be ++ , pls don't change it
96102
}
97-
103+
98104
/**
99105
* uses black magic to print this tree in console
100106
*/
101-
publicvoidprint(){
107+
publicvoidprint(){
102108
this.print(0);
103109
}
104-
110+
105111
//getters and setters
106112
publicTgetData() {
107113
returndata;

‎src/main/java/com/dataStructures/DisjointSet.java

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,6 @@
1515
* <p>
1616
* 2. quickly query two elements whether contained in the same set, requiring about O(1) time.
1717
*
18-
* @author yangxf
1918
*/
2019
publicclassDisjointSet<T>implementsSerializable {
2120
privatestaticfinallongserialVersionUID =3134700471905625636L;

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