1.MainActivity.java

1 package com.example.administrator.testapp2;  2   3 import android.support.v7.app.AppCompatActivity;  4 import android.os.Bundle;  5 import android.view.View;  6 import android.widget.Button;  7 import android.widget.TextView;  8   9 public class MainActivity extends AppCompatActivity { 10  11     TextView tv_1; 12  13     Button bt1; 14     Button bt2; 15     Button bt3; 16     Button bt4; 17     Button bt5; 18     Button bt6; 19     Button bt7; 20     Button bt8; 21     Button bt9; 22     Button bt0; 23     Button bt_add; 24     Button bt_jian; 25     Button bt_cheng; 26     Button bt_chu; 27     Button bt_kuohao; 28     Button bt_dian; 29  30     @Override 31     protected void onCreate(Bundle savedInstanceState) { 32         super.onCreate(savedInstanceState); 33         setContentView(R.layout.activity_main); 34  35         tv_1 = (TextView)findViewById(R.id.tv_1); 36  37         bt0 = (Button)findViewById(R.id.bt0); 38         bt0.setOnClickListener(new View.OnClickListener() { 39             @Override 40             public void onClick(View v) { 41                 tv_1.setText("0"); 42             } 43         }); 44         bt1 = (Button)findViewById(R.id.bt1); 45         bt1.setOnClickListener(new View.OnClickListener() { 46             @Override 47             public void onClick(View v) { 48                 tv_1.setText("1"); 49             } 50         }); 51         bt2 = (Button)findViewById(R.id.bt2); 52         bt2.setOnClickListener(new View.OnClickListener() { 53             @Override 54             public void onClick(View v) { 55                 tv_1.setText("2"); 56             } 57         }); 58         bt3 = (Button)findViewById(R.id.bt3); 59         bt3.setOnClickListener(new View.OnClickListener() { 60             @Override 61             public void onClick(View v) { 62                 tv_1.setText("3"); 63             } 64         }); 65         bt4 = (Button)findViewById(R.id.bt4); 66         bt4.setOnClickListener(new View.OnClickListener() { 67             @Override 68             public void onClick(View v) { 69                 tv_1.setText("4"); 70             } 71         }); 72         bt5 = (Button)findViewById(R.id.bt5); 73         bt5.setOnClickListener(new View.OnClickListener() { 74             @Override 75             public void onClick(View v) { 76                 tv_1.setText("5"); 77             } 78         }); 79         bt6 = (Button)findViewById(R.id.bt6); 80         bt6.setOnClickListener(new View.OnClickListener() { 81             @Override 82             public void onClick(View v) { 83                 tv_1.setText("6"); 84             } 85         }); 86         bt7 = (Button)findViewById(R.id.bt7); 87         bt7.setOnClickListener(new View.OnClickListener() { 88             @Override 89             public void onClick(View v) { 90                 tv_1.setText("7"); 91             } 92         }); 93         bt8 = (Button)findViewById(R.id.bt8); 94         bt8.setOnClickListener(new View.OnClickListener() { 95             @Override 96             public void onClick(View v) { 97                 tv_1.setText("8"); 98             } 99         });100         bt9 = (Button)findViewById(R.id.bt9);101         bt9.setOnClickListener(new View.OnClickListener() {102             @Override103             public void onClick(View v) {104                 tv_1.setText("9");105             }106         });107         bt_add = (Button)findViewById(R.id.bt_add);108         bt_add.setOnClickListener(new View.OnClickListener() {109             @Override110             public void onClick(View v) {111                 tv_1.setText("+");112             }113         });114         bt_jian = (Button)findViewById(R.id.bt_jian);115         bt_jian.setOnClickListener(new View.OnClickListener() {116             @Override117             public void onClick(View v) {118                 tv_1.setText("-");119             }120         });121         bt_cheng = (Button)findViewById(R.id.bt_cheng);122         bt_cheng.setOnClickListener(new View.OnClickListener() {123             @Override124             public void onClick(View v) {125                 tv_1.setText("X");126             }127         });128         bt_chu = (Button)findViewById(R.id.bt_chu);129         bt_chu.setOnClickListener(new View.OnClickListener() {130             @Override131             public void onClick(View v) {132                 tv_1.setText("÷");133             }134         });135         bt_dian = (Button)findViewById(R.id.bt_dian);136         bt_dian.setOnClickListener(new View.OnClickListener() {137             @Override138             public void onClick(View v) {139                 tv_1.setText(".");140             }141         });142         bt_kuohao = (Button)findViewById(R.id.bt_kuohao);143         bt_kuohao.setOnClickListener(new View.OnClickListener() {144             @Override145             public void onClick(View v) {146                 tv_1.setText("()");147             }148         });149     }150 }

2.jsq.xml

1 
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      156 157     
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      173