的StringIndexOutOfBoundsException雖然應用程序仍然運行

-1

我在Android Studio中此錯誤：的StringIndexOutOfBoundsException雖然應用程序仍然運行

09-30 14:50:54.929 1698-1698/inco.aplicacion.safrapp.indecipherablecode D/dalvikvm﹕ Not late-enabling CheckJNI (already on) 
09-30 14:50:55.080 1698-1698/inco.aplicacion.safrapp.indecipherablecode E/Trace﹕ error opening trace file: No such file or directory (2) 
09-30 14:50:56.410 1698-1698/inco.aplicacion.safrapp.indecipherablecode D/gralloc_goldfish﹕ Emulator without GPU emulation detected. 
09-30 14:51:03.880 1698-1702/inco.aplicacion.safrapp.indecipherablecode D/dalvikvm﹕ GC_CONCURRENT freed 140K, 3% free 11005K/11271K, paused 23ms+55ms, total 107ms 
09-30 15:12:06.719 1783-1783/inco.aplicacion.safrapp.indecipherablecode E/Trace﹕ error opening trace file: No such file or directory (2) 
09-30 15:12:11.739 1783-1783/inco.aplicacion.safrapp.indecipherablecode D/gralloc_goldfish﹕ Emulator without GPU emulation detected. 
09-30 15:12:19.570 1783-1788/inco.aplicacion.safrapp.indecipherablecode D/dalvikvm﹕ GC_CONCURRENT freed 147K, 3% free 11002K/11271K, paused 30ms+26ms, total 131ms 
09-30 15:12:19.590 1783-1783/inco.aplicacion.safrapp.indecipherablecode D/AndroidRuntime﹕ Shutting down VM 
09-30 15:12:19.590 1783-1783/inco.aplicacion.safrapp.indecipherablecode W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb2f1b288) 
09-30 15:12:19.620 1783-1783/inco.aplicacion.safrapp.indecipherablecode E/AndroidRuntime﹕ FATAL EXCEPTION: main 
    java.lang.RuntimeException: Unable to start activity ComponentInfo{inco.aplicacion.safrapp.indecipherablecode/inco.aplicacion.safrapp.indecipherablecode.javacrear}: java.lang.StringIndexOutOfBoundsException: length=0; regionStart=0; regionLength=1 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
      at android.app.ActivityThread.access$600(ActivityThread.java:130) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
      at android.os.Handler.dispatchMessage(Handler.java:99) 
      at android.os.Looper.loop(Looper.java:137) 
      at android.app.ActivityThread.main(ActivityThread.java:4745) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:511) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
      at dalvik.system.NativeStart.main(Native Method) 
    Caused by: java.lang.StringIndexOutOfBoundsException: length=0; regionStart=0; regionLength=1 
      at java.lang.String.startEndAndLength(String.java:593) 
      at java.lang.String.substring(String.java:1474) 
      at inco.aplicacion.safrapp.indecipherablecode.javacrear.CREARCODIGO(javacrear.java:61) 
      at inco.aplicacion.safrapp.indecipherablecode.javacrear.onCreate(javacrear.java:18) 
      at android.app.Activity.performCreate(Activity.java:5008) 
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
            at android.app.ActivityThread.access$600(ActivityThread.java:130) 
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
            at android.os.Handler.dispatchMessage(Handler.java:99) 
            at android.os.Looper.loop(Looper.java:137) 
            at android.app.ActivityThread.main(ActivityThread.java:4745) 
            at java.lang.reflect.Method.invokeNative(Native Method) 
            at java.lang.reflect.Method.invoke(Method.java:511) 
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
            at dalvik.system.NativeStart.main(Native Method) 
09-30 15:15:37.013 1835-1835/inco.aplicacion.safrapp.indecipherablecode E/Trace﹕ error opening trace file: No such file or directory (2) 
09-30 15:15:37.873 1835-1835/inco.aplicacion.safrapp.indecipherablecode D/gralloc_goldfish﹕ Emulator without GPU emulation detected. 
09-30 15:16:11.533 1835-1840/inco.aplicacion.safrapp.indecipherablecode D/dalvikvm﹕ GC_CONCURRENT freed 145K, 3% free 11005K/11271K, paused 17ms+45ms, total 91ms 
09-30 15:16:11.563 1835-1835/inco.aplicacion.safrapp.indecipherablecode D/AndroidRuntime﹕ Shutting down VM 
09-30 15:16:11.563 1835-1835/inco.aplicacion.safrapp.indecipherablecode W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb2f1b288) 
09-30 15:16:11.584 1835-1835/inco.aplicacion.safrapp.indecipherablecode E/AndroidRuntime﹕ FATAL EXCEPTION: main 
    java.lang.RuntimeException: Unable to start activity ComponentInfo{inco.aplicacion.safrapp.indecipherablecode/inco.aplicacion.safrapp.indecipherablecode.javacrear}: java.lang.StringIndexOutOfBoundsException: length=0; regionStart=0; regionLength=1 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
      at android.app.ActivityThread.access$600(ActivityThread.java:130) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
      at android.os.Handler.dispatchMessage(Handler.java:99) 
      at android.os.Looper.loop(Looper.java:137) 
      at android.app.ActivityThread.main(ActivityThread.java:4745) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:511) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
      at dalvik.system.NativeStart.main(Native Method) 
    Caused by: java.lang.StringIndexOutOfBoundsException: length=0; regionStart=0; regionLength=1 
      at java.lang.String.startEndAndLength(String.java:593) 
      at java.lang.String.substring(String.java:1474) 
      at inco.aplicacion.safrapp.indecipherablecode.javacrear.CREARCODIGO(javacrear.java:61) 
      at inco.aplicacion.safrapp.indecipherablecode.javacrear.onCreate(javacrear.java:18) 
      at android.app.Activity.performCreate(Activity.java:5008) 
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
            at android.app.ActivityThread.access$600(ActivityThread.java:130) 
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
            at android.os.Handler.dispatchMessage(Handler.java:99) 
            at android.os.Looper.loop(Looper.java:137) 
            at android.app.ActivityThread.main(ActivityThread.java:4745) 
            at java.lang.reflect.Method.invokeNative(Native Method) 
            at java.lang.reflect.Method.invoke(Method.java:511) 
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
            at dalvik.system.NativeStart.main(Native Method) 
09-30 15:17:34.594 1908-1908/inco.aplicacion.safrapp.indecipherablecode E/Trace﹕ error opening trace file: No such file or directory (2) 
09-30 15:17:35.447 1908-1908/inco.aplicacion.safrapp.indecipherablecode D/gralloc_goldfish﹕ Emulator without GPU emulation detected. 
09-30 15:18:07.294 1956-1956/inco.aplicacion.safrapp.indecipherablecode E/Trace﹕ error opening trace file: No such file or directory (2) 
09-30 15:18:08.095 1956-1956/inco.aplicacion.safrapp.indecipherablecode D/gralloc_goldfish﹕ Emulator without GPU emulation detected.

即使我得到的消息，該應用程序仍然運行在模擬器，並在我的應用程序的第一個佈局有三個按鈕，如果我按一個特定的按鈕，它會崩潰。類（尚未完成）的代碼：

package inco.aplicacion.safrapp.indecipherablecode; 

import android.os.Bundle; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 

import org.w3c.dom.Text; 

/** 
* Created by SAFR on 9/29/2014. 
*/ 
public class javacrear extends java0 { 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.disecrear); 
     CREARCODIGO(); 
    } 

    /** 
    * CREAR CODIGO: 
    */ 
    private void CREARCODIGO() { 
     EditText CODIGO = (EditText) findViewById(R.id.CODIGO); 
     EditText CODIGONUMERO = (EditText) findViewById(R.id.CODIGONUMERO); 
     TextView CREADO = (TextView) findViewById(R.id.CREADO); 
     Button CREAR = (Button) findViewById(R.id.CREAR); 
     String A, A1, A2; 
     A1 = ""; 
     String AL[] = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"}; 
     A = CODIGO.getText().toString(); 

     A2 = A; 
     int B, X1, X2, X3, X4, V, CONTADO, X, Y; 
     X = 0; 
     Y = 1; 
     B = A.length(); 
     V = 0; 
     /** 
     * DIVISION DEL TEXTO: 
     */ 
     if (B <= 10) { 
      V = 2; 
     } else if (B > 10 && B <= 20) { 
      V = 6; 
     } else if (B > 20 && B <= 30) { 
      V = 10; 
     } else if (B > 30 && B <= 40) { 
      V = 14; 
     } else if (B > 40 && B <= 50) { 
      V = 18; 
     } else if (B > 50) { 
      V = 22; 
     } 

     A = A.toUpperCase(); 

     /** ENCRIPTAMIENTO: */ 
     for (CONTADO = 0; CONTADO == B; CONTADO++) { 
      if (A.substring(X, Y).equals(AL[1])) { 
       int ZZZ = 1; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[2])) { 
       int ZZZ = 2; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[3])) { 
       int ZZZ = 3; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[4])) { 
       int ZZZ = 4; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[5])) { 
       int ZZZ = 5; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[6])) { 
       int ZZZ = 6; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[7])) { 
       int ZZZ = 7; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[8])) { 
       int ZZZ = 8; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[9])) { 
       int ZZZ = 9; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[10])) { 
       int ZZZ = 10; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[11])) { 
       int ZZZ = 11; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[12])) { 
       int ZZZ = 12; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[13])) { 
       int ZZZ = 13; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[14])) { 
       int ZZZ = 14; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[15])) { 
       int ZZZ = 15; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[16])) { 
       int ZZZ = 16; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[17])) { 
       int ZZZ = 17; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[18])) { 
       int ZZZ = 18; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[19])) { 
       int ZZZ = 19; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[20])) { 
       int ZZZ = 20; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[21])) { 
       int ZZZ = 21; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[22])) { 
       int ZZZ = 22; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[23])) { 
       int ZZZ = 23; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[24])) { 
       int ZZZ = 24; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[25])) { 
       int ZZZ = 25; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } else if (A.substring(X, Y).equals(AL[26])) { 
       int ZZZ = 26; 
       ZZZ = ZZZ + V; 
       A1 = AL[ZZZ]; 
       A2 = A2 + A1; 
       X = X + 1; 
       Y = Y + 1; 
      } 
     } 
     CREAR.setText(A2); 
    } 
}

來源

2014-09-30 Asker McQuetion

你介意說明CREARCODIGO應該做什麼嗎？也許可以重新命名這些變量以使其有意義？ – Tim 2014-09-30 12:35:41

加密文本（代碼尚未完成）...加密過程與凱撒代碼相同（A變成C，B變成E等等） – 2014-09-30 12:42:48

我創建了按鈕（缺失）並仍然不起作用... – 2014-09-30 12:46:13

我看到了很多很多問題：

for (CONTADO = 0; CONTADO == B; CONTADO++)應該有<條件，而不是==。
A.substring(X, Y).equals(AL[1])此檢查從1開始並上升到26.您將獲得ArrayOutOfBoundException。
再次在A.substring(X, Y).equals(AL[1])，因爲您試圖匹配字符串A的每個字符，那麼爲什麼不使用toCharArray()將其轉換爲char []。
內if塊，什麼是你想：

int ZZZ = 1; 
ZZZ = ZZZ + V; 
// This will give ArrayOutOfBoundException if value of ZZZ is greater then 25. 
A1 = AL[ZZZ];

A2 = A2 + A1;您正在使用多少內存（串追加始終是一個糟糕的主意）。

你可能已經從if塊中提取代碼來分離函數。

來源

2014-09-30 17:19:02 Ambrish

的StringIndexOutOfBoundsException雖然應用程序仍然運行

回答

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