From 0429dbb844d3a575b2828603e94218e035d3b62c Mon Sep 17 00:00:00 2001 From: Mahdi Date: Wed, 3 Jun 2026 18:46:12 +0330 Subject: [PATCH] answer theoric question --- Report.md | 42 ++++++++++++++++++++++++++++++++++++++++++ picture/Q1.PNG | Bin 0 -> 2936 bytes picture/Q2.PNG | Bin 0 -> 1515 bytes picture/Q3.PNG | Bin 0 -> 918 bytes 4 files changed, 42 insertions(+) create mode 100644 Report.md create mode 100644 picture/Q1.PNG create mode 100644 picture/Q2.PNG create mode 100644 picture/Q3.PNG diff --git a/Report.md b/Report.md new file mode 100644 index 0000000..21f586a --- /dev/null +++ b/Report.md @@ -0,0 +1,42 @@ +# Theoretical Questions + + +--- + +## Question 1 +### 1. `start()` vs `run()` + + + +![cover](picture/Q1.PNG) + +When we use the run method, we are actually in the main thread where the run function is called and it is executed in the same main thread, meaning there is a total of 1 thread. But when we use the start method, we actually have 2 threads, where a separate thread is created and the instructions inside the run function are executed in the new thread. + +--- + + +## Question 2 +### 2. Daemon Threads + +![cover](picture/Q2.PNG) + +1. Since we have the Daemon state in this thread, the program terminates the daemon thread after the main thread finishes, and the desired thread cannot perform its action 20 times. + +2. if we remove `thread.setDaemon(true)` this thread 20 times print "Daemon thread running..." and then program finished. + +3. In real life : for example when we turn off the car . the thread that play song from radio should be killed + + +--- + + +## Question 3 +### 3.A shorter way to create threads + +![cover](picture/Q3.PNG) + + +This syntax call `Lambda Expression` + +when we use Lambda expression we will write less code, and we don't need to create a new class +but when we use Traditional model, our code is cleaner than other model, but we should write more code diff --git a/picture/Q1.PNG b/picture/Q1.PNG new file mode 100644 index 0000000000000000000000000000000000000000..823145e9a1b946d6d3a51a34e579ef675a6fedb3 GIT binary patch literal 2936 zcmXw*2{aVm7ssFYDZ+#bLzF#aPqxXDJ!_IJTZj?amx#$Pj5Wq&OGd`n*GS3|KSV#3 zVTf##u`gNDjM2#SpMIVHId8f5-FMG<=e+OzoSR~8Y0SwEWd{Ionwl6~1Aqz6unmu~ zGS=i~(m6H&9koR?}2u43)D=>c5SP%BsgpzXQNNXKJ8#J<4^n2xcXA z^>h;CXS{`4^9~D3R{e_rZ8tEX9dj(Y32)_jV}x5Iw#q<JuyuM{jFLWkan{ZST6{TteazWe2SNY&ld{3b1i(9yX<8uT zi5e_MPyj+c>>=m}dG!2@!)4~qj*iOG*jjvBUyh2i^TF8t6H5?_sV`FmpR|GTIJ9s% z#s+r4e36=VFasWt{kQ4#V!AZP+u-SoxcMmGt&Qv`*FekFot-RbXUgRTsrvi2pQkj- z?@VKZskyE?Iuu7N9&g{a`RL!KhP7AS3erGV^Ce;f@^x*`*?aw>A0dA?*s#KFee!up zn+A7y@ytGl18P5R78}x_x02b6r~ZhNcfIB9=Yp8<0ibYbuZv#Q(QaE~P&x!@yBD4@ zu<`Nr_CfG8rOC~8>NsT|+jCBmgK+tB`Agd_9o4x6v!@~9FEY_BsErlW!`3sm#YyAa zRhhOV)q-H{9o< zCyQ(nov1#?)6Ph-A+I}y(}po|rN&-GZNe+mJB78u#<`#TIOnI$^|i+p&2lXw!c8)q zGW?qUet*4RxjOa((I&^NlnG{(&U0Bu1gcilf-dN$H63p2(1%4zQ37m3*7QVLU8=kz%>VJErlB!hGGgmvGxpfqKT%++_^;fZxPus>Lr!mVk zaqZcZm5Z3R&MPh>j&PMXUogmd;iD)=rS(LW5>n`W2Nqy`pZ#2;ILx`-tT#z3SgP|d zE-fLZNT%0wG6?E30aFS|j(z zv&(JrJ}h4_x){hEO>{gE0Xvlabk!Kl;8k8%`~16bt^%7XUZWU!*qRX92NnprcaL#I z^1p4xeVdtazrG$)D+Po6Bsd=b9qM7jsNe4_k&hX5a=X=UTXe`vw~WMVKggvAjG?F+HmR)PKpx% zxODpUs+o}lB#n!AeaZUwR}cV;`km6OD0W6-rbi^Cv+gQCjTGi(7&0YT~XB zFJ)qaZ{*fXxoG5TVG1h|k}$uY!_OC6BYCW{_~ZIJ74i((+^8d5x+$MxjyU#viyWza;2)7Rh>`{<9nZ&TsJ zDnpf00XH2qxvp!)8J|Dh zYyyMx$`?p#r#I%)Q`l{BY^1NL{U_n}P@pCtHS;a1UTVSL9{nSGYcWW>1{3@rY0?O2 zHRRK|_8mO#&8(|Urd(5nzG(0v`f=ldAQ6L9O-U)N;Tum#!hiGN2D!U)o}^)^`DGCu-Z+vnTFc>_^~i5+l}1=_sL8PQCY6D zwdHlc%y13|FWS^d-5XJ;*MgAzJ>XRq=|5Ng7WrC&5Oez^??}Fej zchN&9*60sT=~D$Cl!;}8Sz{FA9=HvVvqPxTkCJsN3|_+UFU?)gA*eYbD{*KRwblaLW#4cQ9cugeYsm(%00UnBt)N`PnCr{s$Y~;} z-g%3Xds9KN{wc|jzyJLcS9snct$XBwdUn#Wrg6M_fWwru7yf&C^WgxoimFlGY3F*( zbMWt}RapcaU+YiKtvL00{#4x%7Tf9rwLDwFuFG>ILlt6SRmWqIgs;*bluEew}K)G6C&mIAK!7Zz5DcjEB#PRLT$??`t#_74{z4)ogx5wz6rqTsH+O5 z3Kf<$qI~64|76)r&$VcRQeO*VlEkwuuM&UAhqVtNYez?Jne|n)W2}yfn?bZzX>viU zrJ_@9&!(BIeUEq&zKRP3EQdeH5Sy-*izXzVHE(c|M=4m;y?fDDpe(R7Y6A1WcbJbA z`ZD=1elm!yS2!k(lb(YRa{;=F3`Q?`x9|*vhF&p(t@Vg@`Vn~voIaIT1cKwL%0Bhx zKKUfvfi7NGhY){VyJ6e0L<4eZb17H8J=|!zR7W{?TifnNk!&M|+#!dU54!xhW;qtp z>$$2F{W%2Npifa*ijX~5Az)f#GImjM7~mv^O;iYl@{V3{6aDSE7@2K{S(Ao5p(M|l zzE1l(DVWvaM)znUF+lPeVxHXiLn1cjEiWp12us(?ILV8wAE6>|_UMZOz_)7340Io{ zQE(HfoCF3-{ZA*NWbDw_Tx~z{dM6`}fN{Y;SI!%~VrI0m?CGiiEb{-6p&|i*Eazl8 Zgp(hykFdTs%;-9SsiCDoy}tY3{{vI-jduV5 literal 0 HcmV?d00001 diff --git a/picture/Q2.PNG b/picture/Q2.PNG new file mode 100644 index 0000000000000000000000000000000000000000..ced060d1907f47dad01b0a3c63c446d5e9a4f071 GIT binary patch literal 1515 zcmVPx#1ZP1_K>z@;j|==^1poj532;bRa{vGi!vFvd!vV){sAK>D1%OFJK~#8N?VRnI zs~`}CQ^2O1^kOGAVkP#mJ-H4rFyQc&#LWli$NSt>aA4qYG?CoP&(F_B+~#%r{r&Z< z^Ua)RuGiZ(uY1`#Z@23;DwA-%WeRn!*J)csY#GDH&6H>BER!!ceHX`)miStI?td=! zw1hFbPK$`YZu2y6t7}6Y52`Q6;I`M7eG}zs|A|Vz++GyhA^Re)k##t}T9%BT91DWA z6l)-fBl_R1k4)}Fntys;i&1JrElcuO>&f`Ze3!8EwQQ59Thf=W!|iK*D_rjl;FyIsgCe`zZzhz_Yl=06rCe7cV^FJR2AQcx%4h01h9~{&DdWFaQ7s z1_l7Yz`y_i7?`ISK#~hAbc9 zy*jAl4S=?v+C{SL;$qQRk#?Pe(zxyl>FOYZw%sim-po&zIuH}ezo>%`L(of@-O5A#>Eh)LAae&)b2EfRRmxv8i=O;y?N<$;v3+X-E;gP9fFm*h2`xAh9Scw{zMQ~6 z(g2h@Xk1>-Ut55ty~g}n+wU=eQu`baCIE;_ZgGUC0TO5sARlW2JJSGiqJGo>2+Fl= z5c&L5gD`Dp#wSO){fYtH(Y`)UE-!pk7>cR^(BEEEhW&1({N6p3J6z0`1=_-)osRf5 z15k4i^-KAia`_lf=R5N&wcnCoseLuJ(l;2um|!a~00RR90AOHX000aO3;=+EfdK$8 zFfafB24;8z&|b5>ntNW8z8e3!@x%H(I`+pv@*OczcxV2p^z0;jH8241UpNB@n?JsF zB4Gdk961;OVb8_;)6I5O|CDgtEf$pv@ftBNvo)2yEc~uL#P_Dd*DHpE|4$%KsehWm zNrS14Z_D^cW1Kuawp`D3d<@4snew-y8-SY-77`*ewDqap)uWuOWVIftB(% z<+bsXb3o@i^Q-nRn&W)|(6NhO%fGceoC6F1yqx1l04)Ch0tNuUz`y_i7#J7;00RR90AN^twm<$PEd61O RDK!89002ovPDHLkV1i1Xz`g(g literal 0 HcmV?d00001 diff --git a/picture/Q3.PNG b/picture/Q3.PNG new file mode 100644 index 0000000000000000000000000000000000000000..af42128e8bf34c1379cf2aa6eda9abfe00895cbe GIT binary patch literal 918 zcmeAS@N?(olHy`uVBq!ia0y~yV6*|U^Sb^uZH~Ax@7%2QbJxkA-J_G1 zxXke@^Lxf7c7_Z#4mpMek_r_J4QU=+_eA$EEIFJqt})QhqvobvzG^32Y-PVH)axI^^(1wAG>aMOmX<*TRnsHaZP_+EVM^si0z z?+$rAb-%u_qV`y9+kDe7?Ui!TSwR>!TBr^-o%+NXPrtp6{67@pb;Qda)3BpyhV@ z6{k4QZryLTVotoU&F?+3ypr9MA65j_O{)0!@t5q@&$dq8%ISMVd3N65F4FHje{0^q zTgK;l?61^c62Ef(IBWj|>ka3f1-AeEIqUg%=}UIeH=f357P0i7_?qnXDc)Z=u5RJ4 zXIJLmRF>$kdS5>m7`Q+8xvYpwKQjN7{eAl*R(b-b3x6->TUy9CeLcs$U&%M+zjS`s z{(0@T-yjki~PQ+>4j=e3RN|4wISS%EjTGQJYZy)g`Pf%7IfP&v;M4`e`u!F+;(7IV(@hJ Kb6Mw<&;$THtf;C0 literal 0 HcmV?d00001