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Video: Koj sau lub scanner hauv Java li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2024-01-18 08:24
Piv txwv 2
- ntshuam java ua .util.*;
- pej xeem chav ScannerClassExample1 {
- public static void main(String args){
- String s = "Nyob zoo, Qhov no yog JavaTpoint.";
- // Tsim tshuab luam ntawv Yam khoom thiab hla txoj hlua hauv nws.
- Lub tshuab luam ntawv scan = new Lub tshuab luam ntawv (s);
- // Tshawb xyuas yog tias cov tshuab luam ntawv muaj ib tug token.
- System.out.println("Boolean Result: " + scan.hasNext());
Hais txog qhov no, koj siv scanner hauv Java li cas?
Scanner Class hauv Java
- Txhawm rau tsim ib qho khoom ntawm Scanner chav kawm, peb feem ntau dhau qhov khoom ua ntej System.in, uas sawv cev rau tus qauv inputstream.
- Txhawm rau nyeem cov lej ntawm cov ntaub ntawv hom XYZ, cov haujlwm siv yog tom ntejXYZ().
- Txhawm rau nyeem cov hlua, peb siv nextLine().
- Txhawm rau nyeem ib tus cim, peb siv next().charAt(0).
Ib sab saum toj no, koj ua li cas nkag ib txoj hlua hauv Java? Java programming source code
- import java. siv. Lub tshuab luam ntawv;
- chav GetInputFromUser {
- public static void main(String args) {
- ib a; ntab b; Txoj hlua s;
- Scanner hauv = new Scanner(System. in);
- Qhov system. tawm. println("Sau ib txoj hlua");
- s = in. nextLine();
- Qhov system. tawm. println("Koj nkag mus "+s);
Kuj kom paub, koj ua li cas tsim cov chav kawm scanner hauv Java?
Tshaj tawm thiab tsim a Lub tshuab luam ntawv khoom hauv Java zoo li qub Lub tshuab luam ntawv sc = new Lub tshuab luam ntawv (System.in); Ua li ntawd, koj tuaj yeem siv sc sib txawv tsis sib xws hauv txoj kev chav kawm . Tsim ib tug Lub tshuab luam ntawv yam khoom, koj siv lo lus tseem ceeb tshiab ua raws li kev hu mus rau Scannerclass tus tsim.
Dab tsi yog scanner SC tshiab scanner system hauv Java?
siv tus NextInt Method ntawm cov khoom ntawd, uas tso cai rau koj nkag mus rau qee cov ntawv nyeem thiab nws yuav muab faib ua tus lej. Lub tshuab luam ntawv s = tshiab Scanner ( Qhov system .in); Aboostatement peb tsim ib yam khoom ntawm a Lub tshuab luam ntawv chav kawm uas yog txhais nyob rau hauv import java ua .util. tshuab luam ntawv pob. tshuab luam ntawv chav kawm tso cai rau cov neeg siv coj mus rau hauv lub formconsole.
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