这段代码怎么加入按钮? [code=Java] import java.io.BufferedReader ; import java.io.IOException; import java.io.InputStreamReader; public class Input { public static int mb_In(BufferedReader f ) { try { String s = f.readLine() ; int i = Integer.parseInt(s); return i ; } catch (IOException e) { return -1 ; } } public static void main(String[] args) { BufferedReader f1 = new BufferedReader (new InputStreamReader(System.in)); BufferedReader f2 = new BufferedReader (new InputStreamReader(System.in)); int i=0 ; int j=0 ; try { System.out.println("请输入第一个数字:");
i = mb_In( f1 ) ; System.out.println("请输入第二个数字:");
System.out.println("第一个输入数字"+ i); System.out.println("第一个输入数字"+ j); System.out.println("请选择操作,1为加法,2为减法"); BufferedReader f3 = new BufferedReader (new InputStreamReader(System.in)); int k = mb_In(f3); switch(k) { case 1 : System.out.println("相加为"+ (j+i)); break ; case 2 : System.out.println("相减为"+ (j-i)); break ; } } }code]
import java.io.BufferedReader ; import java.io.IOException; import java.io.InputStreamReader; public class Input { public static int mb_In(BufferedReader f ) { try { String s = f.readLine() ; int i = Integer.parseInt(s); return i ; } catch (IOException e) { return -1 ; } } public static void main(String[] args) { BufferedReader f1 = new BufferedReader (new InputStreamReader(System.in)); BufferedReader f2 = new BufferedReader (new InputStreamReader(System.in)); int i=0 ; int j=0 ; try { System.out.println("请输入第一个数字:");
i = mb_In( f1 ) ; System.out.println("请输入第二个数字:");
[code=Java]
import java.io.BufferedReader ;
import java.io.IOException;
import java.io.InputStreamReader;
public class Input
{
public static int mb_In(BufferedReader f )
{
try
{
String s = f.readLine() ;
int i = Integer.parseInt(s);
return i ;
}
catch (IOException e)
{
return -1 ;
}
} public static void main(String[] args)
{
BufferedReader f1 = new BufferedReader (new InputStreamReader(System.in));
BufferedReader f2 = new BufferedReader (new InputStreamReader(System.in));
int i=0 ;
int j=0 ;
try
{
System.out.println("请输入第一个数字:");
i = mb_In( f1 ) ;
System.out.println("请输入第二个数字:");
j = mb_In( f2 ) ;
}
catch(Exception e)
{
System.err.println("异常");
e.printStackTrace();
}
System.out.println("第一个输入数字"+ i);
System.out.println("第一个输入数字"+ j);
System.out.println("请选择操作,1为加法,2为减法");
BufferedReader f3 = new BufferedReader (new InputStreamReader(System.in));
int k = mb_In(f3);
switch(k)
{
case 1 :
System.out.println("相加为"+ (j+i));
break ;
case 2 :
System.out.println("相减为"+ (j-i));
break ;
}
}
}code]
import java.io.IOException;
import java.io.InputStreamReader;
public class Input
{
public static int mb_In(BufferedReader f )
{
try
{
String s = f.readLine() ;
int i = Integer.parseInt(s);
return i ;
}
catch (IOException e)
{
return -1 ;
}
} public static void main(String[] args)
{
BufferedReader f1 = new BufferedReader (new InputStreamReader(System.in));
BufferedReader f2 = new BufferedReader (new InputStreamReader(System.in));
int i=0 ;
int j=0 ;
try
{
System.out.println("请输入第一个数字:");
i = mb_In( f1 ) ;
System.out.println("请输入第二个数字:");
j = mb_In( f2 ) ;
}
catch(Exception e)
{
System.err.println("异常");
e.printStackTrace();
}
System.out.println("第一个输入数字"+ i);
System.out.println("第一个输入数字"+ j);
System.out.println("请选择操作,1为加法,2为减法");
BufferedReader f3 = new BufferedReader (new InputStreamReader(System.in));
int k = mb_In(f3);
switch(k)
{
case 1 :
System.out.println("相加为"+ (j+i));
break ;
case 2 :
System.out.println("相减为"+ (j-i));
break ;
}
}
}
加个Jbutton,实现actionlistener这个方法
public void actionPerformed(ActionEvent eve){
//事件处理
}
))
也可以用不同的监听,两个监听,大家监听一个按钮,大家做大家自己的事情。