public?class?HelloWorld{
public?static?void?main(String[]?args){
String?today="周末";
String?weather="晴朗";
if?(today.equals("周末")){
?if?(weather.erquals("晴朗")){
System.out.println("去室外游樂場(chǎng)游玩");
}else{
System.out.println("去室內(nèi)游樂場(chǎng)游玩");
}else{
System.out.println("去上班");
}
}
}
}
D:\liujiahao\zuoye>javac?HelloWorld.java
HelloWorld.java:10:?錯(cuò)誤:?有?'if',?但是沒有?'else'
????????????????????????}else{
?????????????????????????^
1?個(gè)錯(cuò)誤
6 回答
已采納
UDUN
TA貢獻(xiàn)2條經(jīng)驗(yàn) 獲得超2個(gè)贊
package?hello;
public?class?HelloWorld{
????public?static?void?main(String[]?args){
????????String?today="周末";
????????String?weather="晴朗";
????????if?(today.equals("周末")){
?????????if?(weather.equals("晴朗")){
????????????????System.out.println("去室外游樂場(chǎng)游玩");
????????????}
?????????else?{
????????????????System.out.println("去室內(nèi)游樂場(chǎng)游玩");
????????????}
????????}
?????????else{
????????????????System.out.println("去上班");
?????????????}
??????????
????????}
?????????
????}問題出在你在最后一個(gè)else語句放在了第一個(gè)if{}語句塊里面，我改了一下，你看看
舊丶愛人
TA貢獻(xiàn)7條經(jīng)驗(yàn) 獲得超9個(gè)贊
public?class?HelloWorld{
????public?static?void?main(String[]?args){
????????String?today="周末";
????????String?weather="晴朗";
????????if?(today.equals("周末")){
?????????if?(weather.erquals("晴朗")){
????????????????System.out.println("去室外游樂場(chǎng)游玩");
????????????}else{
????????????????System.out.println("去室內(nèi)游樂場(chǎng)游玩");
????????????}
????????}else{
????????????????System.out.println("去上班");
????????????}
?????????
????}
}
vLiang
TA貢獻(xiàn)47條經(jīng)驗(yàn) 獲得超30個(gè)贊
else{
????????????????System.out.println("去室內(nèi)游樂場(chǎng)游玩");
????????????}
改為?
else if{
????????????????System.out.println("去室內(nèi)游樂場(chǎng)游玩");
????????????}
只有最后一個(gè)分支才可以試用else
Caballarii
TA貢獻(xiàn)1123條經(jīng)驗(yàn) 獲得超629個(gè)贊
一個(gè)if只能對(duì)應(yīng)一個(gè)else，第二個(gè)else運(yùn)行不到
否則需要把第一個(gè)else改成else if(xxx)
-
此生不變丶要怎么該 能寫下嗎 -
此生不變丶改了錯(cuò)得更多。了
-
Caballariiif (today.equals("周末")){ if (weather.erquals("晴朗")){ System.out.println("去室外游樂場(chǎng)游玩"); }else{ System.out.println("去室內(nèi)游樂場(chǎng)游玩"); } }else{ System.out.println("去上班"); } } 看了一下，你的if else的括號(hào)個(gè)數(shù)不匹配
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