if (test) action;
if (operator.equalsIgnoreCase("+")) oper = 0;
value = firstNum + secondNum;
double firstnb; double secondnb;
if operator '+' operator '0'; else if operator '-' operator '1'; else if operator '*' operator '2'; else if operator '/' operator '3'; else operator = '4'; switch(operator)
System.out.println("operator"); Scanner sc1=new Scanner(System.in); operator=sc1.next();
int oper = 4; if operator "+" oper 0; else if operator "-" oper 1; else if operator "*" oper 2; else if operator "/" oper 3; switch(oper)
package Textprg; import java.util.Scanner; public class Calculteur { public static void main (String[] args) { double firstnb; double secondnb; String operator; double value; System.out.println("Entrez expressions suc as 2+2 or 34.2*7.81"); System.out.println("To end ,enter a 0"); while(true) { System.out.println("Entrez votre premier Nb:"); Scanner sc=new Scanner(System.in); firstnb=sc.nextInt(); if(firstnb==0) break; System.out.println("operator"); Scanner sc1=new Scanner(System.in); operator=sc1.next(); System.out.println("Entrez second Nb"); Scanner sc2=new Scanner(System.in); secondnb=sc2.nextInt(); int oper = 4; if operator "+" oper 0; else if operator "-" oper 1; else if operator "*" oper 2; else if operator "/" oper 3; switch(oper) { case '0': value = firstNum + secondNum; break; case '1': value = firstNum - secondNum; break; case '2': value = firstNum * secondNum; break; case '3': value = firstNum / secondNum; break; default: System.out.println("Unknown operator: " + operator); continue; } System.out.println("Value is " + value); System.out.println(); } System.out.println("Good bye"); } }
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Posez votre questionswitch(oper) { case '0': value = firstNum + secondNum; break; case '1': value = firstNum - secondNum; break; case '2': value = firstNum * secondNum; break; case '3': value = firstNum / secondNum; break; default: System.out.println("Unknown operator: " + operator); continue; } System.out.println("Value is " + value); System.out.println(); } System.out.println("Good bye"); } }
switch(oper) { case 0: value = firstNum + secondNum; break; case 1: value = firstNum - secondNum; break; case 2: value = firstNum * secondNum; break; case 3: value = firstNum / secondNum; break; default: System.out.println("Unknown operator: " + operator); continue; } System.out.println("Value is " + value); System.out.println(); } System.out.println("Good bye"); } }
System.out.println("operator"); Scanner sc1=new Scanner(System.in); operator=sc1.next();
System.out.println("operator"); Scanner sc1=new Scanner(System.in); operator=sc1.nextLine();
package Textprg; import java.util.Scanner; public class Calculteur { public static void main (String[] args) { double firstnb; double secondnb; String operator; double value; System.out.println("Entrez expressions suc as 2+2 or 34.2*7.81"); System.out.println("To end ,enter a 0"); while(true) { System.out.println("Entrez votre premier Nb:"); Scanner sc=new Scanner(System.in); firstnb=sc.nextInt(); if(firstnb==0) break; System.out.println("operator"); Scanner sc1=new Scanner(System.in); operator=sc1.next(); System.out.println("Entrez second Nb"); Scanner sc2=new Scanner(System.in); secondnb=sc2.nextInt(); int oper = 4; if operator "+" ;oper 0; else if operator "-";oper 1; else if operator "*" ;oper 2; else if operator "/" ;oper 3; switch(oper) { case 0: value = firstNum + secondNum; break; case 1: value = firstNum - secondNum; break; case 2: value = firstNum * secondNum; break; case 3: value = firstNum / secondNum; break; default: System.out.println("Unknown operator: " + operator); continue; } System.out.println("Value is " + value); System.out.println(); } System.out.println("Good bye"); } }
int oper = 4; if operator "+" ;oper 0; else if operator "-";oper 1; else if operator "*" ;oper 2; else if operator "/" ;oper 3;
int oper = 4; if operator "+" oper 0; else if operator "-" oper 1; else if operator "*" oper 2; else if operator "/" oper 3;
package Textprg; import java.util.Scanner; public class Calculteur { public static void main (String[] args) { double firstnb; double secondnb; String operator; double value; System.out.println("Entrez expressions suc as 2+2 or 34.2*7.81"); System.out.println("To end ,enter a 0"); while(true) { System.out.println("Entrez votre premier Nb:"); Scanner sc=new Scanner(System.in); firstnb=sc.nextInt(); if(firstnb==0) break; System.out.println("operator"); Scanner sc1=new Scanner(System.in); operator=sc1.nextLine(); System.out.println("Entrez second Nb"); Scanner sc2=new Scanner(System.in); secondnb=sc2.nextInt(); int oper = 4; if operator "+" oper 0; else if operator "-" oper 1; else if operator "*" oper 2; else if operator "/" oper 3; switch(oper) { case 0: value = firstNum + secondNum; break; case 1: value = firstNum - secondNum; break; case 2: value = firstNum * secondNum; break; case 3: value = firstNum / secondNum; break; default: System.out.println("Unknown operator: " + operator); continue; } System.out.println("Value is " + value); System.out.println(); } System.out.println("Good bye"); } }
int oper = 4; if (operator.equals("+")) oper = 0; else if (operator.equals("-")) oper = 1; else if (operator.equals("*")) oper = 2; else if (operator.equals("/")) oper = 3;