Entenda os Laços de Repetição na Programação

Eles permitem que um conjunto de instruções seja executado várias vezes.

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Tipos de laços de repetição

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For

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While

[{"selector":"#anim-d154e3b6-0e7d-4f83-99a0-400e3a7ec533 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(19.50744606066902%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0b631236-fff3-4f5c-93f7-b9d7c9c86c4a","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-79f09b88-9fc7-485f-bbde-ba99a04ae57f","keyframes":{"transform":["translate3d(-115.63519%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-69dc3c1c-be7d-4eb0-9774-58ec9acc63f0","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3517459e-90cd-4e66-97dd-598b47e7e4b1","keyframes":{"transform":["translate3d(115.23810%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b2a5e35b-03d8-4fc9-b17a-db5e1fc898ce","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3ee00e87-5bd7-4ca2-b720-f4eb857d34fc","keyframes":{"transform":["translate3d(-113.12499%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}]

Do-While

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Exemplos de uso

[{"selector":"#anim-702aa59e-1087-4104-977b-913184077b40 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.21264928838952%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-50a4f6c9-6cd0-4fe5-81cd-6f38fcd69949","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-801d6f44-fee7-41ad-90d8-42373ce628db","keyframes":{"transform":["translate3d(-114.92064%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8fb6b593-ea59-4d08-b676-45b5b0ac2e0f","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2bf41f29-c886-49de-afec-015234e4a750","keyframes":{"transform":["translate3d(115.55555%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3733b84c-896d-4872-b69f-aa147934f4f0","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6224e836-650b-4eba-bab1-8e9f147c4cb8","keyframes":{"transform":["translate3d(-114.6875%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7d05876c-2c97-4842-af36-a394b1bf4e63","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-187a8621-e73e-4ec7-833a-1369575e25a0","keyframes":{"transform":["translate3d(115.87301%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}]

Exemplo While

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Aprenda mais sobre Laços de Repetição!

[{"selector":"#anim-7c661af5-652e-4c1c-b817-f174555975bb [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.246337776828504%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-8bf2836d-ffc5-4271-a46d-ecccb278f718","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-56ae71bf-a9d9-4ec5-ad18-173d31e29549","keyframes":{"transform":["translate3d(-114.6875%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-01ad15b2-0ee9-4c01-aa69-da773f923dac","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-01795934-5449-494e-be77-a92b86fc9f78","keyframes":{"transform":["translate3d(116.61342%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Leia mais

Entenda os Laços de Repetição na Programação

Eles permitem que um conjunto de instruções seja executado várias vezes.

Tipos de laços de repetição

Existem três tipos principais de laços de repetição: o for, o while e o do-while.

For

O laço for é utilizado quando se sabe o número exato. Ele é composto por três partes: a inicialização, a condição e o incremento.

While

A condição é verificada antes de cada iteração e, caso seja verdadeira, as instruções dentro do laço serão executadas.

Do-While

A condição é verificada após a primeira iteração. Isso significa que, as instruções dentro do laço serão executadas pelo menos uma vez.

Exemplos de uso

Os laços de repetição são amplamente utilizados em várias situações.

Laço For

for (int i = 1; i <= 10; i++) { System.out.println(i); }

Exemplo While

Se você quiser ler uma senha do usuário até que ele digite a senha correta, pode usar o laço while.

String senha = ""; while (!senha.equals("senha")) { System.out.print("Digite a senha: "); senha = scan.nextLine(); }

Aprenda mais sobre Laços de Repetição!

Confira mais detalhes sobre os laços na programação. Clique abaixo para ver nosso artigo completo!