java 배운지 딱 5일째...

package com.example.over;
 
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
 
public class MainActivity extends Activity {
 
	EditText edit1, edit2, edit3, edit4, edit5, edit6, edit7, edit8, edit9, edit10;
	Button btn1;
	TextView output;
	String num1, num2, num3, num4, num5, num6, num7, num8, num9, num10;
	Double a, b, c, d, e, f, g, h, i, j;
	Double t, ts=(double) 0, sum=(double)0;
    Double[] S, E;
    Integer n;
 
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
 
		setTitle("시간외 수당");
 
		edit1 = (EditText) findViewById(R.id.edit1);
		edit2 = (EditText) findViewById(R.id.edit2);
		edit3 = (EditText) findViewById(R.id.edit3);
		edit4 = (EditText) findViewById(R.id.edit4);
		edit5 = (EditText) findViewById(R.id.edit5);
		edit6 = (EditText) findViewById(R.id.edit6);
		edit7 = (EditText) findViewById(R.id.edit7);
		edit8 = (EditText) findViewById(R.id.edit8);
		edit9 = (EditText) findViewById(R.id.edit9);
		edit10 = (EditText) findViewById(R.id.edit10);
 
		btn1 = (Button) findViewById(R.id.btn1);
		output = (TextView) findViewById(R.id.output);
 
 
		btn1.setOnClickListener(new View.OnClickListener() {
 
			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
 
 
              num1 = edit1.getText().toString();
              num2 = edit2.getText().toString();
              num3 = edit3.getText().toString();
              num4 = edit4.getText().toString();
              num5 = edit5.getText().toString();
              num6 = edit6.getText().toString();
              num7 = edit7.getText().toString();
              num8 = edit8.getText().toString();
              num9 = edit9.getText().toString();
              num10 = edit10.getText().toString();
 
               a = Double.parseDouble(num1);
               b = Double.parseDouble(num2);
               c = Double.parseDouble(num3);
               d = Double.parseDouble(num4);
               e = Double.parseDouble(num5);
               f = Double.parseDouble(num6);
               g = Double.parseDouble(num7);
               h = Double.parseDouble(num8);
               i = Double.parseDouble(num9);
               j = Double.parseDouble(num10);
 
               S= new Double[4];
			   E= new Double[4];
 
			   S[0]=a; S[1]=c; S[2]=e; S[3]=g; S[4]=i;
			   E[0]=b; E[1]=d; E[2]=f; E[3]=h; E[4]=j; 
 
 
            	if(S[n]!=0 && E[n]!=0){
 
            		for (n= 0; n<=4; n++){
 
            			t=E[n]-S[n]-1;
 
            			if (t<=0.0) 
            				t=0.0;
            			 if (t>=4.0)
            				 t=4.0;
            			 ts += t; 
            		}
 
            		sum = ts*10000;
 
            		  if(ts>=15 ) 
            			  sum = sum*0.95;
 
            		     if (ts<=5)
            		    	 sum = sum*1.05;             	   
 
 
            	output.setText("계산결과:" + sum.toString());  
 
            	}else {
 
                	 Toast.makeText(getApplicationContext(), "시간을 정확하게 입력하세요!",0).show();
          		}
               return ;
			}
 
 
});
}
}