[英]Print boolean output of if and else loops
我有一个Java代码,用于检查键盘输入。 如果特定字符返回True,则存在一个循环。 else对于其他任何字符均返回false。
如何编写代码以识别程序选择了以上两个(真或假)中的哪一个并将其打印出来? 实例connectionStatus的布尔值
import java.util.Scanner;
public class BlueTooth3 {
public boolean connectionStatus;
boolean connectBlueTooth () {
System.out.println("Enter connecting code Baby3");
Scanner keyboard = new Scanner(System.in);
String conCode = keyboard.next();
System.out.println("You Entered " + conCode);
keyboard.close();
if (conCode.equals ("c")){
System.out.println(conCode + " Is a true Code");
System.out.println("This is Boolean " +Boolean.TRUE);
return connectionStatus;
}
if (conCode.equals ("C")){
System.out.println(conCode + " Is a true Code");
System.out.println("This is Boolean " +Boolean.TRUE);
return connectionStatus;
}
else {
System.out.println( conCode + " Is a false Code" );
System.out.println("This is Boolean " + Boolean.FALSE);
return connectionStatus;
}
}
}
除非我闭上眼睛,否则您似乎对connectionStatus
变量没有任何作用。 您可以更改该变量的值,以便接收该变量的函数可以相应地执行操作。 例如:
if (conCode.equals ("C")){
System.out.println(conCode + " Is a true Code");
System.out.println("This is Boolean " +Boolean.TRUE);
connectionStatus = true; // means that the code went in this if
return connectionStatus;
}
else {
System.out.println( conCode + " Is a false Code" );
System.out.println("This is Boolean " + Boolean.FALSE);
connectionStatus = false; // means that the code went in this else
return connectionStatus;
}
而且您的代码应如下所示:
public void myFunc(){
System.out.println(connectBlueTooth);
}
这只是简单的打印出的结果connectBlueTooth
功能,这应该是真实的,如果它在去if
,假如果在去else
。
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