From 41fb4a2a2b0e5dbb91be641092a9b0b45f1753a1 Mon Sep 17 00:00:00 2001
From: Chiriac21 <chiriac.gabriel21@yahoo.com>
Date: Mon, 8 Nov 2021 00:15:35 +0200
Subject: [PATCH 1/3] CW1 Challenge1-2

---
 .../FizzBuzz_Challenge1/FizzBuzz.class        | Bin 0 -> 2287 bytes
 .../FizzBuzz_Challenge1/TestFizzBuzz.class    | Bin 0 -> 494 bytes
 .../student_effort_fizzbuzz/FizzBuzz.java     |  42 ++++++++++++++++++
 .../student_effort_fizzbuzz/TestFizzBuzz.java |   6 +++
 4 files changed, 48 insertions(+)
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/out/production/FizzBuzz_Challenge1/FizzBuzz.class
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/out/production/FizzBuzz_Challenge1/TestFizzBuzz.class
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/student_effort_fizzbuzz/FizzBuzz.java
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/student_effort_fizzbuzz/TestFizzBuzz.java

diff --git a/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/out/production/FizzBuzz_Challenge1/FizzBuzz.class b/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/out/production/FizzBuzz_Challenge1/FizzBuzz.class
new file mode 100644
index 0000000000000000000000000000000000000000..304dab0e8906cd4910ddabd706688071bf36062e
GIT binary patch
literal 2287
zcma)7OH&+G7(JJHbkozrqj^LnB*6d<uOP+*l8G^ah#{E)5)cgdNHf!chM{|ErlAV<
zu3Wh@ZcN2RHZIf!S}gnl{v@k>oZH<nJpxu{aqoA(KHvGC_s$=GAN~$t9NQW?FxH6o
za8*M)-q&yq*Hw&b=*NUyZb<b_gW%gz`p|#~q`L+h0%^)XERa4j5SLOvJ~oiRjDiOW
z9ttFH*^ceq7KmjAmIUHcZqX8G&e@JNyR*G!RTj;)5;aE7EtsVxvtrA0sEm6Xc2z*j
zP22nXlRNwSS%E~kVmqFI?(YEyG3}Xw+@`r}j+RVkeRRPiXq{+b3$#T(%s8I4ZdK$L
z8X1u<$0q3o&n#@^&9Wbaf}Dc9K$Bg)XYbloo6$|~U1cVjnSmAN=lEHWZ|1+CYjjX=
zb=N6USx+_2YSf{|#+dPfyHhDx)3z*4`Y8J=GC>`kIHzD%#~kK$T);&Ik90i7f&g?Z
z;u9T9Sl00lG6F4=uIp93idoKE-iBMOHYf3^iYGc&u&QGS85N)D7?%6zI!5IFg^nw7
z|5C?OTvS1qD_9dykK!P0t<-aCn^uASh^T^63bfWxVcqLtdsWZc=47}#wC@OdVY{RA
zvccrA%x(6m%_pf>3n+f~OAhTaCz~iIP1!X|JJ#GYflhWRf~k#wN<T{y<xl5~h60N0
zsE~PH5;(VQZdp^VQ!u?{+uNX2^-Ra(-1ML3GveZSmXbnFEx9zGG(055<G@2wJTU#w
zs^=aREhYr<6Q_7M=^&a`=u?3u+r_c(tySN4cHJ#2ycI!4(`LbQD|-sIm~qZ^w|2_B
zQ!|cZRi;X2wQ4cVZ=*qk9KjgfH=Sb1s`dtk*^`k)G<AlHdu8hs_-X_n3{*CnTSzfw
zmP!k@XJr+X1o}?ocUo)$7yciI9=>fIeB=O?4;(KS*Ee_?<<2XG#Ne+GKT~MHn_QE=
zQs6DhdH_Hd&hsSDeQbP#Xlb1K1r37-h#eqaqtN&fd@eOUlr@^vF%9oDjTwWuPGo}E
zmqsEN{|(9f@Bx&T;t%+GP)Y|-pCdhVh(;jy3TvTK3zR8enGcnEpiKM9iBQ=TD4Tud
z<xtrYC|iAH(-0jQhiKzzcvd=%KV=|K@;Bon%dh^aFux%tH}n&ujQItcL<?n=r$)3g
z$MZ<>UqQzh(#WC-(`d##F{}J)!9bbZ`|QA1#6M@&FUTURa)}HozTw{E*Xw0ipBTQ!
z+qldM^%B(%^)ILj`V{ncxAUj{Nj@Q8zo3SANNZVdy(?M%j^V#TJoY2cL9{_TyM2$H
z0WS0-+dF{4&`$yl+8sF%d@@fEt7j7Tygo7C;E?!H7_s3;obEcCzAr*=9LH_c$KB$`
z&8I!2&xQ2qt`_CYzy~7C>0{<}J#)%u=AXq$=G2+YBd^OG;}w**?p<tf*XZLJHnGm}
b$nxCJn|O=55B&9xzfSt=J%63{*ZcnhvXaDC

literal 0
HcmV?d00001

diff --git a/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/out/production/FizzBuzz_Challenge1/TestFizzBuzz.class b/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/out/production/FizzBuzz_Challenge1/TestFizzBuzz.class
new file mode 100644
index 0000000000000000000000000000000000000000..1c49b2c5469d2f2dc725cce6ea8e3e88b4d70fa7
GIT binary patch
literal 494
zcmZut%TB^T6g{^s6lyImt?z|9&_tFlFfKG<VH#aPFviss8yo_~l-5Q6%8ewN_yK;D
z@lLCOL}zjD+{by$e15%s064{gg(6%NTNX69Dr}qBF|kW1p2<+g=LEgk8W4=j*+W36
zcrpyGlc^s>ec?~IQ}<>=F&T(Rs`{sC#E)`LaJ+snkGnEWFOoFvFw0cPkl;4&y|H)}
z?TH9S?Oq(oaMa0EL^NVt<DW5se1hezuvxuX5)Ff{R6c5}QYVVthKUlP^oy{uhkb&*
zx=5%ljokR-U>Nhp6B~;2SF)RpX6vt89HPK~r;Y|vN*v2vwK)^#!qEcsl8r5n#jHtK
z<GY<Na9-!C3<nkNDDV}NX`G#RXm<<f-tjAp+a-$wou@jB8H_DtY;KM~6*ZofSgDQ%
L^RaQRHEezZ9cp0U

literal 0
HcmV?d00001

diff --git a/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/student_effort_fizzbuzz/FizzBuzz.java b/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/student_effort_fizzbuzz/FizzBuzz.java
new file mode 100644
index 000000000..3c96e2db7
--- /dev/null
+++ b/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/student_effort_fizzbuzz/FizzBuzz.java
@@ -0,0 +1,42 @@
+public class FizzBuzz {
+
+    public void printNumbers(){
+            String s = "";
+          for(Integer i=1; i<=100; i++){
+                if(isDivisibleBy3(i)){
+                    s += "Fizz ";
+                }else if(isDivisibleBy5(i)){
+                    s += "Buzz ";
+                }else if(isDivisibleBy3And5(i)){
+                    s += "FizzBuzz ";
+                }else if(isDivisibleBy7(i)){
+                    s += "Rizz ";
+                }else if(isDivisibleBy11(i)){
+                    s += "Jazz ";
+                }else{
+                    s += i.toString() + " ";
+                }
+          }
+        System.out.println(s);
+    }
+
+    public boolean isDivisibleBy3(int number){
+        return number % 3 == 0;
+    }
+
+    public boolean isDivisibleBy5(int number){
+        return number % 5 == 0;
+    }
+
+    public boolean isDivisibleBy3And5(int number){
+        return number % 3 == 0 && number % 5 == 0;
+    }
+
+    public boolean isDivisibleBy7(int number){
+        return number % 7 == 0;
+    }
+
+    public boolean isDivisibleBy11(int number){
+        return number % 11 == 0;
+    }
+}
diff --git a/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/student_effort_fizzbuzz/TestFizzBuzz.java b/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/student_effort_fizzbuzz/TestFizzBuzz.java
new file mode 100644
index 000000000..5261fa246
--- /dev/null
+++ b/_1_basics/src/main/java/code/_4_student_effort/FizzBuzz_Challenge1/student_effort_fizzbuzz/TestFizzBuzz.java
@@ -0,0 +1,6 @@
+public class TestFizzBuzz {
+    public static void main(String[] args) {
+            FizzBuzz b = new FizzBuzz();
+            b.printNumbers();
+    }
+}

From a07b2e7f847510d37f3b3fcc5a7f28fd59ac67b7 Mon Sep 17 00:00:00 2001
From: Chiriac21 <chiriac.gabriel21@yahoo.com>
Date: Mon, 8 Nov 2021 00:16:31 +0200
Subject: [PATCH 2/3] CW1 Challenge1-2

---
 .../FooBarQix_Challenge2/FooBarQix.class      | Bin 0 -> 2246 bytes
 .../FooBarQix_Challenge2/TestFooBarQix.class  | Bin 0 -> 475 bytes
 .../student_effort_foobarqix/FooBarQix.java   |  76 ++++++++++++++++++
 .../TestFooBarQix.java                        |   6 ++
 4 files changed, 82 insertions(+)
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/out/production/FooBarQix_Challenge2/FooBarQix.class
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/out/production/FooBarQix_Challenge2/TestFooBarQix.class
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/student_effort_foobarqix/FooBarQix.java
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/student_effort_foobarqix/TestFooBarQix.java

diff --git a/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/out/production/FooBarQix_Challenge2/FooBarQix.class b/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/out/production/FooBarQix_Challenge2/FooBarQix.class
new file mode 100644
index 0000000000000000000000000000000000000000..bf5a50dd8e5916b84a7396e52c3e38c2eb9b665c
GIT binary patch
literal 2246
zcma)8-%k`*6#nl1m>HH?SyxvJs}?IN&_xt*t$_Gr6{Rky#o`ZY+hG}DWSQCQ4n&eB
zeW)*O`ru>BgE97jq-kT@2iox9TVMKz^lxa4t^Mwu39Mn$G$Cj2IrrXk&-Z=j-r<jb
zHeLWYh4}<_qQ}6oG~K>5gftQKC2$BQrO8WkDvc;krxBC0aSS)%3`P=2;cOZj&L?mI
z1sxZ4ToTZR9oO+k1frc?Qv$JqH){*D6dl)|SX!L1t2eEgG9&4tSF*}eR@ISy7>xPz
zPEDY>IO=&9tm+Nt;gEn{@)j#gKKEog$GVCStYxdWY`Js2lYZ54=eQz1>&!X6fEeTX
zt~!Md6Qvui*3@dwMy3k_$w}WTEsR?gRf3LD9R~%B@XS8u;i6`zcF|dOYK|&h+!Zh@
zJlhWtF_mxx5|iFiwPcSv65ftY1jl5-Ceqj?Kz>sfJkPKBRjV>?`}5vxtwqCS16NFp
z;e7*F4HQj`qs_zwu9>)w8wNg*lWhhj4cwH&4|PnLxP{v$4$Jr*8N91w+Qdh=C(yKc
zIM3VS>)Ol%yF{AmLIH&de2h=1mEb;sy^Gd@UGUtJ<==Ard5&tn<@!W<q;or;4F!n_
zswWdtK?=BRm6z;m_sOI073Qt#`D)c#;dE!0R6uuXmli8N18f;mD+Hwx-O_M$w85E$
zhKJU}TB-T=A`^N`#G47KcD&x}QZ!<=twpwtCfd)8w5v15{wJ_qip@7O5rJxkvMW2Z
zL82)gpGt*h1v<9WaNK2Y!48`^pnKFR`CfHJ2dUDEp0}`6VW*9`u3asZty;~d2H(`5
z5atLv>5ApfmhD<cuyJU6A$5^AHr`yR*bSCX*R2m)XQ-a{Fh#*CmnR+H9?~%<aCjTO
zMzskX`0sT%$j4<TpCs_j;WfrC+THYe`O9mBc=xXmKXVX4hE`KSfju0X!2;~XTl554
z(MHS7;x<<sjD4MsjAymVDiXO3K5Q7z8le-DPD&5Gxb%L5whn!wXE4?pdy$Vv^IAsB
z#GhfXHI~r^@_I&3^*`OrMDJwa$yD@C1)faxNE2(Xf6uMM_!f!m2AUYl{lt2r3d00J
zO1M$JuuVjiVy$~P+K*;*5Y@YAK|iBK5;I9k?h=#5o%2NM5$iJNK0_8?U?0B10ma1t
za~09e=sxHYdB}<!?PrWP1YdIP+hnF6chFAaqj-lab7*>nl#WAY@-+|Bb)*D69Uc7R
zmBA}yMe-$*e<7Y^9=<~%%TJk$(D0lrM@JOTX2^4FL@_O0Ne^Acwe%%H^aHjf*Msra
z_=~(2l?-RJXRuo18GRscWDLo7GR(M!0t2L624v1P^f5rzWk4of!$Ag)2Z4kNr1r1E
z%w>!XGD}%>%JQU6i2H0Akc23|d~s6WOmJx&A>Ew>*+q)FIg_L9!3i8AaVId0K1^|R
z4+EG(9xlJF4{;iwV~_+7<1xROt2m1%I0u%9A5l;OjZo+*+@L^5RBJxp6zKV;KtF^6
z#qm9kvW6)0)s$2*B~>pHe`7br5j$F5vq~e>ih6B{bwH$2sh2P*7j^2|yigulix6&m
zY&e^;zeC$EFtgp+btE^i16W7PBSC)tly@!YQ~7TIaGB+fk*Le;ovRAU9_ER#=x)_l
z%oswE-PDB0D?aBhITd9i%WIoMiN6UJW5LD@Q}xo%u}zONc0$>HWe1dfPuW3bhm<|{
EFTjAsRR910

literal 0
HcmV?d00001

diff --git a/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/out/production/FooBarQix_Challenge2/TestFooBarQix.class b/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/out/production/FooBarQix_Challenge2/TestFooBarQix.class
new file mode 100644
index 0000000000000000000000000000000000000000..2feac4edb85ca4326a969ded1a8963d64be8e87a
GIT binary patch
literal 475
zcmZutO-sW-5Pg%RNgI>4wi-V#-dY8F^ic7jP!NJ5Ed}wksiAIZ6WONX-|}KX!5`p{
z5@%Df7Tm+kzBlvU%<kvc+XsLX?7OfLIM{MwAkbmk!H$Dnf_*9znVk{LMzc?_F4Fs$
zPzhxcU(F^_ta>6EGgAxGff)CNk{bVzR`wvLy1N%ovrd|x3w0x(+iWutG9d(wyKp3)
zL~AUPVXK=dnGD<c7@>wNtp8IcP()Y@|Ju3TbfyMzN9LQX3_I5T9vl=2rC*JQJx%y4
zt%T}wnd@j24>E%H$V+95r%rKz0{@gg21uK7EHP?vCeDS!Ip`%XyBzJD<Zb!xEgCrc
zj7lh@!i*MQvYElze}{29hZ!Ed!djY?VRF&rSr&^6xmmCfpo(>_6`8G}&US<i#s)UO
E0q+-C{{R30

literal 0
HcmV?d00001

diff --git a/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/student_effort_foobarqix/FooBarQix.java b/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/student_effort_foobarqix/FooBarQix.java
new file mode 100644
index 000000000..8c32cdde3
--- /dev/null
+++ b/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/student_effort_foobarqix/FooBarQix.java
@@ -0,0 +1,76 @@
+public class FooBarQix {
+
+    public String compute(int number){
+        String s = "";
+            if(number % 3 == 0){
+                s += "Foo";
+            }
+            if(number % 5 == 0){
+                s += "Bar";
+            }
+            if(number % 7 == 0){
+                s += "Qix";
+            }
+
+            char[] digits = String.valueOf(number).toCharArray();
+            for(int digit : digits){
+                if(digit == '3') {
+                    s += "Foo";
+                }
+                if(digit == '5') {
+                    s += "Bar";
+                }
+                if(digit == '7') {
+                    s += "Qix";
+                }
+            }
+            if(s.isEmpty()){
+                s = "" + number;
+            }
+            return s;
+    }
+
+    public String compute2(int number){
+        String s = "";
+        boolean isDivisible = false;
+        if(number % 3 == 0){
+            s += "Foo";
+            isDivisible = true;
+        }
+        if(number % 5 == 0){
+            s += "Bar";
+            isDivisible = true;
+        }
+        if(number % 7 == 0){
+            s += "Qix";
+            isDivisible = true;
+        }
+
+        char[] digits = String.valueOf(number).toCharArray();
+        for(char digit : digits){
+            if(digit == '3') {
+                s += "Foo";
+            }
+            else if(digit == '5') {
+                s += "Bar";
+            }
+            else if(digit == '7') {
+                s += "Qix";
+            }
+            else if(digit == '0'){
+                s += "*";
+            }
+            else if(!isDivisible){
+                s += digit;
+            }
+        }
+        return s;
+    }
+
+    public void printNumbers(){
+        for(int i=1; i<=101; i++){
+            //System.out.println(i + " => " + this.compute(i));
+            System.out.println(i + " => " + this.compute2(i));
+        }
+    }
+}
diff --git a/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/student_effort_foobarqix/TestFooBarQix.java b/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/student_effort_foobarqix/TestFooBarQix.java
new file mode 100644
index 000000000..a31ec480d
--- /dev/null
+++ b/_1_basics/src/main/java/code/_4_student_effort/FooBarQix_Challenge2/student_effort_foobarqix/TestFooBarQix.java
@@ -0,0 +1,6 @@
+public class TestFooBarQix {
+    public static void main(String[] args) {
+            FooBarQix b = new FooBarQix();
+            b.printNumbers();
+    }
+}

From fe61b1349d562cd9d7d4c478a58447a64098eb13 Mon Sep 17 00:00:00 2001
From: Chiriac21 <chiriac.gabriel21@yahoo.com>
Date: Mon, 8 Nov 2021 00:18:39 +0200
Subject: [PATCH 3/3] CW1 Challenge1-2

---
 .../production/PairsOf2_Challenge3/PairsOf2.class | Bin 0 -> 249 bytes
 .../PairsOf2_Challenge3/TestPairsOf2.class        | Bin 0 -> 622 bytes
 .../student_effort_pairsof2/PairsOf2.java         |   2 ++
 .../student_effort_pairsof2/TestPairsOf2.java     |   4 ++++
 4 files changed, 6 insertions(+)
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/out/production/PairsOf2_Challenge3/PairsOf2.class
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/out/production/PairsOf2_Challenge3/TestPairsOf2.class
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/student_effort_pairsof2/PairsOf2.java
 create mode 100644 _1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/student_effort_pairsof2/TestPairsOf2.java

diff --git a/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/out/production/PairsOf2_Challenge3/PairsOf2.class b/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/out/production/PairsOf2_Challenge3/PairsOf2.class
new file mode 100644
index 0000000000000000000000000000000000000000..2c3c7538c595e74088d176b5d341d00f76407c22
GIT binary patch
literal 249
zcmXwz%?`m(5QWcFf2dON26k9zVq-yUBvuU)Vt-o~SE@~_yqA^4!UK3HF}GnRIhpg#
znPlFd=L^6HEf*Cu95fyH1bd=VRZIz$Zf{F4XW32?{7|KGaXm*e--sw-(hjp&BwLXy
z?SIfLj_N{i!<A6^Ww{@Y*{ri`9?QAXSB?K-a1uA+!GuMq{vn~Iagd1g5G<pUj0<#N
o@O!$5oAazTyP))d)qjBQ3=BA|He(&FvU=rgp$4~Pbyfr37emD^egFUf

literal 0
HcmV?d00001

diff --git a/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/out/production/PairsOf2_Challenge3/TestPairsOf2.class b/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/out/production/PairsOf2_Challenge3/TestPairsOf2.class
new file mode 100644
index 0000000000000000000000000000000000000000..7d3e550fac86cf8a30a576e7132f39e26085e91d
GIT binary patch
literal 622
zcmZuvJx?1!5Pjo2`|xqbfQdt5C*i9wDX>J70w+zRNJvg>$(EZmS(}Tq#J;oc&Jpzd
z0BTAa>ZAaPf*+8-l7D~%<gGypma@|B?7V$5Z)UW=Z!fO^yupTxG@fR$jAt&MqvW9M
z;DsPl(}7Oj39QOyM_|7X_k2OVt^@zmc-Zx$w(1UuEY`!G8gx{ojsF1J$u}Jf=IU)f
zPMS(bapUXu4zmoE4g|%@=lZ_-p{fHF^sB8T(m{X6sK^2LE_o{IGrsU28VQGjTq{w%
z?;q9ZLC|f5<EZC<(59q?$EsUK$U_E>gO?s&Va36!hc&DVyvIbr{J)wS-F?58OhK)~
zIPr&^M>yugllumASZ%WUggy9b$PNpW9MiDC85z=mt=pB|%??&!bLwWLz){2DIYX~X
zE41m?7m%Nm=Pb|61QfWud-nv)@&;s)!yFM4e9UAP?S@se-j-%gQ7orNC&-+^DV4v}
zj#6@V_vaT<rE^#&x5a315GK}QtW7_SJk=J773r6$xK1UbyF!l5Uy{c>xm3Xdd8UCi
X6o?6y=y|YjV2k9eYv$sZCXC`=-Pd;L

literal 0
HcmV?d00001

diff --git a/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/student_effort_pairsof2/PairsOf2.java b/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/student_effort_pairsof2/PairsOf2.java
new file mode 100644
index 000000000..2afd63abe
--- /dev/null
+++ b/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/student_effort_pairsof2/PairsOf2.java
@@ -0,0 +1,2 @@
+public class PairsOf2 {
+}
diff --git a/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/student_effort_pairsof2/TestPairsOf2.java b/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/student_effort_pairsof2/TestPairsOf2.java
new file mode 100644
index 000000000..7934c2662
--- /dev/null
+++ b/_1_basics/src/main/java/code/_4_student_effort/PairsOf2_Challenge3/student_effort_pairsof2/TestPairsOf2.java
@@ -0,0 +1,4 @@
+public class TestPairsOf2 {
+    public static void main(String[] args) {
+   }
+}