每次运行程序时，它都会终止部分程序而不会留下任何错误消息。这发生在每次相同的地方，在第57-82行之间。为什么会发生这种情况，我该如何解决？
public class DutyDecider_console {
static Scanner input = new Scanner(System.in);
public static void main(String[] args) {
String a, b, c, d, e, f, go, candidateone, candidatetwo, candidatethree, candidatefour, candidatefive, candidatesix;
double z = Math.random();
go =("go");
String optionch;
System.out.println("Welcome to Duty Decider.");
System.out.println(" ");
System.out.println("Please type in your duty you wish to be decided.");
optionch = input.nextLine();
System.out.println("You want to decide who will be " +optionch +".");
System.out.println(" ");
System.out.println("Please type in the possible candidates for doing the " +optionch +".(Type one name at a time and press enter after each name. ");
System.out.println("There can be a total of six candidates. Type 'go' after the desired number of candidates have been entered.");
a = input.nextLine();
candidateone = a;
if(candidateone.contains("go")){
System.out.println(candidateone +" has been selected to " +optionch +".");
}
else if(!candidateone.contains("go")){
System.out.println(candidateone +" has been confirmed.");
System.out.println(" ");
b =input.nextLine();
candidatetwo = b;
if(candidatetwo.contains("go")){
System.out.println(candidateone +" has been selected to " +optionch +".");
}
else if(!candidatetwo.contains("go")){
System.out.println(candidatetwo +" has been confirmed." );
System.out.println(" ");
c = input.nextLine();
candidatethree = c;
if(candidatethree.contains("go")){
if(z<0.5){
System.out.println(candidateone +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<1.0&&z>0.5){
System.out.println(candidatetwo +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
}
else if(!candidatethree.contains("go")){
System.out.println(candidatethree +" has been confirmed.");
System.out.println(" ");
//where I believe the problem begins
d = input.nextLine();
candidatefour = d;
if(candidatefour.contains("go")){
//z by thirds, point .33
if(z<0.33){
System.out.println(candidateone +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.66&&z>0.33){
System.out.println(candidatetwo +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<1.00&&z>0.66){
System.out.println(candidatethree +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else{
System.out.println(candidatefour +" has been confirmed.");
System.out.println(" ");
e = input.nextLine();
candidatefive = e;
//where I believe the problem ends.
if(candidatefive.contains("go")){
//z by fours, .25
if(z<0.25){
System.out.println(candidateone +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.50&&z>0.25){
System.out.println(candidatetwo +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.75&&z>0.50){
System.out.println(candidatethree +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z>0.75&&z<1.00){
System.out.println(candidatefour +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day!");
}
}
else if(!candidatefive.contains("go")){
System.out.println(candidatefive +" has been confirmed.");
System.out.println(" ");
f = input.nextLine();
candidatesix = f;
if(candidatesix.contains("go")){
//z divisible by 5, point twos
if(z<0.20){
System.out.println(candidateone +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.40&&z>0.20){
System.out.println(candidatetwo +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.60&&z>0.40){
System.out.println(candidatethree +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.80&&z>0.60){
System.out.println(candidatefour +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day!");
}
else if(z<1.00&&z>0.80){
System.out.println(candidatefive +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day!");
}
}
else if (!candidatesix.contains("go")){
System.out.println(candidatesix +"has been confirmed.");
System.out.println(" ");
//z divisible by 6, point .1666
if(z<0.1666){
System.out.println(candidateone +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.3332&&z>0.1666){
System.out.println(candidatetwo +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.4998&&z>0.3332){
System.out.println(candidatethree +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.6664&&z>0.4998){
System.out.println(candidatefour +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day!");
}
else if(z<833&&z>0.6664){
System.out.println(candidatefive +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day!");
}
else if(z<1.00&&z>0.833){
System.out.println(candidatesix +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day!");
}
}
}
}
}
}
}
}
}
}
该计划应该从最多六名候选人中进行选择，他们将完成用户选择的某项职责或家务活。
答案 0 :(得分：1)
你错过了一个结束括号：
//where I believe the problem begins
d = input.nextLine();
candidatefour = d;
if(candidatefour.contains("go")){
//z by thirds, point .33
if(z<0.33){
System.out.println(candidateone +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<0.66&&z>0.33){
System.out.println(candidatetwo +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else if(z<1.00&&z>0.66){
System.out.println(candidatethree +" has been selected to " +optionch +".");
System.out.println(" ");
System.out.println("Thank you for using 'Duty Decider. Have a nice day");
}
else{
System.out.println(candidatefour +" has been confirmed.");
最后两行应该是这样的：
}else{
System.out.println(candidatefour +" has been confirmed.");
正如laune指出的那样，支架实际上并没有丢失，而是放错位置，所以你还必须删除程序末尾的许多右括号中的一个。
答案 1 :(得分：0)
你有这个if语句：
if(candidatefour.contains("go")){
//z by thirds, point .33
if(z < 0.33){
}
else if(z < 0.66 && z > 0.33){
}
else if(z < 1.00 && z > 0.66){
}
else{
// lots of code
}
// close all open blocks, method, class.
你将最后一个与错误联系起来。