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Calc.java
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Calc.java
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import java.util.Scanner;
public class Calc{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
String output = "",perform;
int num,num1,num2;
System.out.print("Enter # of operations: ");
num = scan.nextInt();
if(num>=1&&num<=100){
System.out.print("Enter all operations in one line: ");
for(int i = 1;i<=num;i++){
perform = scan.next().toLowerCase();
switch(perform){
case "negate":
num1 = scan.nextInt();
output = output.concat("\n["+i+"] Operation: "+num1*-1);
break;
case "add":
num1 = scan.nextInt();
num2 = scan.nextInt();
output = output.concat("\n["+i+"] Operation: "+(num1+num2));
break;
case "max":
num1 = scan.nextInt();
num2 = scan.nextInt();
if(num1>=num2)
num2 = num1;
output = output.concat("\n["+i+"] Operation: "+num2);
break;
default:
System.out.println("Invalid operation.");
System.exit(0);
}
}
System.out.println(output);
}else
System.out.println("Enter a number from 1 to 100 only.");
}
}