ال ألحق() طريقة جافا StringBuilder يتم استخدام الفئة لإلحاق قيمة السلسلة بالتسلسل الحالي. هناك العديد من أساليب الإلحاق () المحملة بشكل زائد المتوفرة في فئة StringBuilder. يتم التمييز بين هذه الطرق على أساس معلماتها.

بناء الجملة:

دعونا نرى بناء الجملة المختلف لأسلوب StringBuilder append() :

هل يمكن لفئة مجردة أن يكون لها مُنشئ

 public StringBuilder append(boolean b) public StringBuilder append(char c) public StringBuilder append(char[] str) public StringBuilder append(char[] str, int offset, int len) public StringBuilder append(CharSequence cs) public StringBuilder append(CharSequence cs, int start, int end) public StringBuilder append(double d) public StringBuilder append(float f) public StringBuilder append(int i) public StringBuilder append(long lng) public StringBuilder append(Object obj) public StringBuilder append(String str) public StringBuilder append(StringBuffer sb) public StringBuilder appendCodePoint(int codePoint) 

معامل:

عائدات:

الاستثناءات:

نسخة التوافق:

جافا 1.5 وما فوق

مثال على طريقة إلحاق Java StringBuilder (boolean b).

 public class StringBuilderAppendExample1 { public static void main(String[] args) { StringBuilder sb1 = new StringBuilder('value1 '); System.out.println('builderObject :'+sb1); // appending boolean argument sb1.append(true); // print the StringBuilder after appending System.out.println('after append = ' + sb1); StringBuilder sb2 = new StringBuilder('value2 '); System.out.println('new builderObject :' + sb2); // appending boolean argument sb2.append(false); // print the string Builder after appending System.out.println('after append = ' + sb2); } } 

انتاج:

 builderObject :value1 after append = value1 true new builderObject :value2 after append = value2 false 

مثال على طريقة إلحاق Java StringBuilder (char c).

 public class StringBuilderAppendExample2 { public static void main(String[] args) { StringBuilder sb1 = new StringBuilder('value1 '); System.out.println('builderObject :'+sb1); // appending char argument sb1.append('A'); // print the StringBuilder after appending System.out.println('after append = ' + sb1); StringBuilder sb2 = new StringBuilder('value2 '); System.out.println('new builderObject :' + sb2); // appending char argument sb2.append('#'); // print the string Builder after appending System.out.println('after append = ' + sb2); } } 

انتاج:

شركة مقابل شركة

 builderObject :value1 after append = value1 A new builderObject :value2 after append = value2 # 

مثال على طريقة Java StringBuilder append(char[] str).

 public class StringBuilderAppendExample3 { public static void main(String[] args) { StringBuilder sb1 = new StringBuilder('string '); System.out.println('builderObject :'+sb1); char[] str = {'a','b','c'}; // appending char array argument sb1.append(str); // print the StringBuilder after appending System.out.println('after append = ' + sb1); } } 

انتاج:

 builderObject :string after append = string abc 

مثال على طريقة Java StringBuilder append(char[] str, int offset, int len).

 public class StringBuilderAppendExample4 { public static void main(String[] args){ StringBuilder sb1 = new StringBuilder('string builder '); System.out.println('builderObject :'+sb1); char[] str = {'a','b','c','d','e','f','g'}; // appending char array argument sb1.append(str,1,5); // print the StringBuilder after appending System.out.println('after append = ' + sb1); } } 

انتاج:

 builderObject :string builder after append = string builder bcdef 

مثال على طريقة إلحاق Java StringBuilder (CharSequence cs).

 public class StringBuilderAppendExample5 { public static void main(String[] args) { StringBuilder sb = new StringBuilder('string builder '); System.out.println('builderObject :'+sb); CharSequence cs = 'char sequence'; // appending charsequence argument sb.append(cs); // print the StringBuilder after appending System.out.println('after append = ' + sb); } } 

انتاج:

 builderObject :string builder after append = string builder char sequence 

مثال على طريقة إلحاق Java StringBuilder (CharSequence cs, int start, int end)

 public class StringBuilderAppendExample6 { public static void main(String[] args) { StringBuilder sb = new StringBuilder('string builder '); System.out.println('builderObject :'+sb); CharSequence cs = 'charsequence'; // appending charsequence argument start at index 4 and end at 8(exclusive) sb.append(cs,4,8); // print the StringBuilder after appending System.out.println('after append = ' + sb); } } 

انتاج:

 builderObject :string builder after append = string builder sequ 

مثال على طريقة إلحاق Java StringBuilder (double d).

 public class StringBuilderAppendExample7 { public static void main(String[] args) { StringBuilder sb = new StringBuilder('string builder '); System.out.println('builder :'+sb); // appending double argument sb.append(12.6543210123456789d); // print the StringBuilder after appending System.out.println('after append = ' + sb); } } 

انتاج:

 builder :string builder after append = string builder 12.65432101234568 

مثال على طريقة إلحاق Java StringBuilder (float f).

 public class StringBuilderAppendExample8 { public static void main(String[] args) { StringBuilder sb = new StringBuilder('string builder '); System.out.println('builder :'+sb); // appending float argument sb.append(10.65f); // print the StringBuilder after appending System.out.println('after append = ' + sb); } } 

انتاج:

 builder :string builder after append = string builder 10.65 

مثال على طريقة إلحاق Java StringBuilder (int i).

 public class StringBuilderAppendExample9 { public static void main(String[] args) { StringBuilder sb = new StringBuilder('append int '); System.out.println('builder :'+sb); // appending int argument sb.append(100); // print the StringBuilder after appending System.out.println('after append = ' + sb); } } 

انتاج:

نموذج TCP وIP

 builder :append int after append = append int 100 

مثال على طريقة إلحاق Java StringBuilder (long lng).

 public class StringBuilderAppendExample10 { public static void main(String[] args) { StringBuilder sb = new StringBuilder('append long '); System.out.println('builder :'+sb); // appending long argument sb.append(9223372036854775807l); // print the StringBuilder after appending System.out.println('after append = ' + sb); } } 

انتاج:

 builder :append long after append = append long 9223372036854775807 

مثال على طريقة إلحاق Java StringBuilder (Object obj).

 public class StringBuilderAppendExample11 { public static void main(String[] args) { StringBuilder sb = new StringBuilder('append object '); System.out.println('builder :'+sb); Object obj ='objectValue'; // appending object argument sb.append(obj); // print the StringBuilder after appending System.out.println('after append = ' + sb); } } 

انتاج:

 builder :append object after append = append object objectValue 

مثال على طريقة إلحاق Java StringBuilder (String str).

 public class StringBuilderAppendExample12 { public static void main(String[] args) { StringBuilder sb = new StringBuilder('append string '); System.out.println('builder :'+sb); String str ='my string'; // appending string argument sb.append(str); // print the StringBuilder after appending System.out.println('after append = ' + sb); } } 

انتاج:

 builder :append string after append = append string my string 

مثال على طريقة إلحاق Java StringBuilder (StringBuffer sb).

 public class StringBuilderAppendExample13 { public static void main(String[] args) { StringBuilder stringBuilder = new StringBuilder('append stringBuffer '); System.out.println('builder :'+stringBuilder); StringBuffer sb =new StringBuffer('bufferValue'); // appending string buffer argument stringBuilder.append(sb); // print the StringBuilder after appending System.out.println('after append = ' + stringBuilder); } } 

انتاج:

أعرج كيفية إلغاء التحديد

 builder :append stringBuffer after append = append stringBuffer bufferValue 

مثال على طريقة Java StringBuilder appendCodePoint(int codePoint).

 public class StringBuilderAppendExample14 { public static void main(String[] args) { StringBuilder sb1 = new StringBuilder('append codePoint1 '); StringBuilder sb2 = new StringBuilder('append codePoint2 '); // appending codePoint argument sb1.appendCodePoint(64); sb2.appendCodePoint(65); // print the StringBuilder after appending System.out.println('after append :
' +sb1+'
'+sb2); } } 

انتاج:

 after append : append codePoint1 @ append codePoint2 A