class WaterSource {
private String s;
WaterSource() {
System.out.println("WaterSource()");
s = new String("Constructed");
}
public String toString() { return s; }
} public class Tostringdemo {
private String valve1, valve2, valve3, valve4;
WaterSource source = new WaterSource();
int i;
float f;
void print() {
System.out.println("valve1 = " + valve1);
System.out.println("valve2 = " + valve2);
System.out.println("valve3 = " + valve3);
System.out.println("valve4 = " + valve4);
System.out.println("i = " + i);
System.out.println("f = " + f);
System.out.println("source = " + source);
}
public static void main(String[] args) {
Tostringdemo x = new Tostringdemo();
x.print();
}
} 错误是:仅当显示请求注释处理时才接受类名称“Tostringdemo”
private String s;
WaterSource() {
System.out.println("WaterSource()");
s = new String("Constructed");
}
public String toString() { return s; }
} public class Tostringdemo {
private String valve1, valve2, valve3, valve4;
WaterSource source = new WaterSource();
int i;
float f;
void print() {
System.out.println("valve1 = " + valve1);
System.out.println("valve2 = " + valve2);
System.out.println("valve3 = " + valve3);
System.out.println("valve4 = " + valve4);
System.out.println("i = " + i);
System.out.println("f = " + f);
System.out.println("source = " + source);
}
public static void main(String[] args) {
Tostringdemo x = new Tostringdemo();
x.print();
}
} 错误是:仅当显示请求注释处理时才接受类名称“Tostringdemo”
解决方案 »
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