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Jump statements

Break statement

Fungsi breakadalah untuk meninggalkan sebuah loop ketika kondisi untuk akhiri

perulangan tidak terpenuhi. Break dapat digunakan untuk mengakhiri sebuah infinite loop

atau mengakhiri dengan tidak normal.

Contoh 1

Program untuk melakukan perhitungan mundur . Jika nilai hitungan sudah sampai dengan !maka proses dihentikan.

Program

#include

void main (){ int n; or (n!1"; n>"; n)

{cout

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Contoh

Program untuk menghitung total nilai #ang diinputkan! dimana nilai #ang diinputkan adalah

maksimum ' nilai. Jika total nilai #ang diinput ('''! maka proses dihentikan.

Program

#include

void main (){ int i%n%t; t!"; or (i!1;i

cout

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Continuemen#ebabkan program di-skip pada bagian tertentu.

Contoh

Program untuk men-skip angka ) pada sebuah perhitungan mundur:

3he goto statement

goto allows to make an absolute *ump to another point in the program. +ou should use this

feature with %aution sin%e its e,e%ution %auses an un%onditional *ump ignoring an# t#pe of

nesting limitations.

he destination point is identified b# a label! whi%h is then used as an argument for the goto

statement. label is made of a /alid identifier followed b# a %olon 0:1.

2enerall# speaking! this instru%tion has no %on%rete use in stru%tured or ob*e%t oriented

programming aside from those that low-le/el programming fans ma# find for it. For e,ample!

here is our %ountdown loop using goto:

(#") "

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Desi"ama#anti http:$$www.mer%ubuana.a%.id

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$$ %ontinue loop e,ample

9in%lude iostream(

usingnamespa%estd;

intmain 01

;

?

%out >F@"An>;

return';

?

'! 8! 7! 6! 5! 4! ! 3! ! F@"A

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$$ goto loop e,ample

9in%lude iostream(

usingnamespa%estd;

intmain 01

F@"An>;

return';

?

'! 8! 7! 6! 5! )! 4! ! 3! ! F@"A

3he e4it unction

e,it is a fun%tion defined in the %stdlib librar#.

he purpose of e,it is to terminate the %urrent program with a spe%ifi% e,it %ode. @ts protot#pe

is:

/oide,it 0inte,it%ode1;

he e,it%ode is used b# some operating s#stems and ma# be used b# %alling programs. B#

%on/ention! an e,it %ode of ' means that the program finished normall# and an# other /alue

means that some error or une,pe%ted results happened.

(#") #

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3he selective structure sitch.

he s#nta, of the swit%h statement is a bit pe%uliar. @ts ob*e%ti/e is to %he%k se/eral possible

%onstant /alues for an e,pression. omething similar to what we did at the beginning of this

se%tion with the %on%atenation of se/eralif and else if instru%tions. @ts form is the following:

swit%h 0e,pression1