public class if_else
{
public static void main(String args[])
{
int grade=0,a=0,b=0;
String str;
str=JOtionPane.showInputDialog("输入grade");
great=integer.parseInt(str);
if(grade=7||grade=6)
System.out.println("a=11");
System.out.println("b=22");
else
if(grade=5)
System.out.println("a=33");
System.out.println("b=44");
else
if(grade=4)
System.out.println("a=55");
System.out.println("b=66");
else
System.out.println("a=88");
}
}
{
public static void main(String args[])
{
int grade=0,a=0,b=0;
String str;
str=JOtionPane.showInputDialog("输入grade");
great=integer.parseInt(str);
if(grade=7||grade=6)
System.out.println("a=11");
System.out.println("b=22");
else
if(grade=5)
System.out.println("a=33");
System.out.println("b=44");
else
if(grade=4)
System.out.println("a=55");
System.out.println("b=66");
else
System.out.println("a=88");
}
}
public class if_else
{
public static void main(String args[])
{
int grade=0,a=0,b=0; //初始化grade=0,a=0,b=0;
String str;
str=JOtionPane.showInputDialog("输入grade"); //弹出一个对话框要求输入grade并给这个值赋予给str
great=integer.parseInt(str); //从str中分离出数字
if(grade=7 ¦ ¦grade=6) //判断,这里就不用解释了吧
System.out.println("a=11");
System.out.println("b=22");
else
if(grade=5)
System.out.println("a=33");
System.out.println("b=44");
else
if(grade=4)
System.out.println("a=55");
System.out.println("b=66");
else
System.out.println("a=88");
}
}
错误 "else"不带有"if" 13行
有那位给小弟解释一下
System.out.println("a=11");
System.out.println("b=22");
else
if 后面else前面 所有的语句应该用大括号围起来
否则 if 之和最近的一个语句相匹配
public class if_else
{
public static void main(String args[])
{
int grade=0,a=0,b=0; //初始化grade=0,a=0,b=0;
String str = "";
str=JOptionPane.showInputDialog("输入grade"); //弹出一个对话框要求输入grade并给这个值赋予给str
grade=Integer.parseInt(str); //从str中分离出数字
if(grade==7 ||grade==6){ //判断,这里就不用解释了吧
System.out.println("a=11");
System.out.println("b=22");
}
else
if(grade==5) {
System.out.println("a=33");
System.out.println("b=44");
}
else
if(grade==4) {
System.out.println("a=55");
System.out.println("b=66");
}
else
System.out.println("a=88");
}
}
public class if_else {
public static void main(String args[]) {
int grade = 0, a = 0, b = 0; //初始化grade=0,a=0,b=0;
String str = "";
str = JOptionPane.showInputDialog("输入grade"); //弹出一个对话框要求输入grade并给这个值赋予给str
grade = Integer.parseInt(str); //从str中分离出数字
if (grade == 7 || grade == 6) { //判断,这里就不用解释了吧
System.out.println("a=11");
System.out.println("b=22");
}
else
if (grade == 5) {
System.out.println("a=33");
System.out.println("b=44");
}
else
if (grade == 4) {
System.out.println("a=55");
System.out.println("b=66");
}
else {
System.out.println("a=88");
} }
}