[英]How do I combine strings and integers in a print statement?
我刚刚开始在大学课程中学习Java。 如果还没有涵盖所有陈述,但我认为我可以自己尝试。 我最后遇到了一些我认为可以解决的语法错误,但是现在当我尝试添加带有整数的字符串时似乎出现了操作数错误。
我班上的问题是向用户询问他们的姓名,小时工资率以及他们工作多少小时。 我知道教授很快就会要求我们向用户询问他们是否获得加班费。 如果他们这样做,请问加班了几个小时。 然后计算总付款额,其中任何加班费均为正常时薪的1.5倍。
但是我在最后3个打印语句中遇到错误,我认为这是因为我试图将字符串和整数组合在一起。 我该如何解决?
package javaapplication2;
import java.util.Scanner;
public class JavaApplication2 {
public static void main(String [] args) {
Scanner input = new Scanner(System.in);
String name;
double payRate;
int hours;
Boolean OTyn;
int OTy;
System.out.println("What is your name?");
name = input.nextLine();
System.out.println("What is your hourly rate of pay?");
payRate = input.nextDouble();
System.out.println("How any hours have you worked?");
hours = input.nextInt();
System.out.println("Your boss pays overtime. Answer with true or false.");
OTyn = input.nextBoolean();
if (OTyn == true)
System.out.println("After how many hours are you paid for overtime?");
OTy = input.nextInt();
if (hours > OTy)
System.out.println("Your weekly pay is " + ((40 * payRate) + (hours - OTy)(payRate * 1.5)));
else
System.out.println("Your weekly pay is " + payRate * hours);
else
System.out.println("Your weekly pay is " + payRate * hours);
}
}
我认为您在ifs上缺少{}
if (OTyn == true) { //here
System.out.println("After how many hours are you paid for overtime?");
OTy = input.nextInt();
if (hours > OTy){ // Here doesn need because it is just one line after the if
System.out.println("Your weekly pay is " +
((40*payRate) + (hours - OTy)(payRate*1.5)));
// (hours - OTy)(payRate*1.5) you are missing an operator between this expressions
}else{
System.out.println("Your weekly pay is " + payRate*hours);
}
} else { //here
System.out.println("Your weekly pay is " + payRate*hours);
} //and here
另外,对于仅后一行的IF语句,您不需要{}
因为:
if ( something )
System.out.println("Something is true");
else
System.out.println("Something is false");
您缺少一组括号和一个星号,如下所示。
if (OTyn == true) { // <-- This brace to open.
System.out
.println("After how many hours are you paid for overtime?");
OTy = input.nextInt();
if (hours > OTy)
System.out.println("Your weekly pay is "
+ ((40 * payRate) + (hours - OTy)
* (payRate * 1.5))); // <-- at the start of this line.
else
System.out.println("Your weekly pay is "
+ payRate * hours);
} else // <-- That brace to close.
System.out.println("Your weekly pay is "
+ payRate * hours);
import java.util.Scanner;
public class JavaApplication2
{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String name;
double payRate;
int hours;
Boolean OTyn;
int OTy;
System.out.println("What is your name?");
name = input.nextLine();
System.out.println("What is your hourly rate of pay?");
payRate = input.nextDouble();
System.out.println("How any hours have you worked?");
hours = input.nextInt();
System.out.println("Your boss pays overtime. Answer with true or false.");
OTyn = input.nextBoolean();
if (OTyn == true){
System.out.println("After how many hours are you paid for overtime?");
OTy = input.nextInt();
if (hours > OTy){
System.out.println("Your weekly pay is " + ((40*payRate) + (hours - OTy)*(payRate*1.5)));
}
else{
System.out.println("Your weekly pay is " + payRate*hours);
}
}
else {
System.out.println("Your weekly pay is " + payRate*hours);
}
}
}
试试这个,不仅您缺少括号,而且此行也有问题
System.out.println("Your weekly pay is " + ((40*payRate) + (hours - OTy)(payRate*1.5)));
您需要在(hours - OTy)
和(payRate*1.5)
之间(payRate*1.5)
以(hours - OTy)*(payRate*1.5)
否则字符串连接将不起作用
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