The pripni() metoda Jave StringBuilder razred se uporablja za dodajanje vrednosti niza trenutnemu zaporedju. V razredu StringBuilder so na voljo različne preobremenjene metode append(). Te metode se razlikujejo glede na njihove parametre.
Sintaksa:
Oglejmo si drugačno sintakso metode StringBuilder append():
'eulerjevo število v Javi'
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)
Parameter:
| DataType | Parameter | Opis |
|---|---|---|
| logično | b | Logična vrednost, ki jo je treba dodati. |
| char | c | Vrednost char, ki jo je treba dodati. |
| char | str | To so znaki, ki jih je treba dodati. |
| int | odmik | Indeks prvega znaka za dodajanje. |
| int | samo | Število znakov, ki jih je treba dodati. |
| CharSequence | cs | Zaporedje znakov, ki jih želite dodati. |
| int | začetek | To je začetni indeks podzaporedja, ki ga je treba dodati. |
| int | konec | To je končni indeks podzaporedja, ki ga je treba dodati. |
| dvojno | d | Dvojna vrednost, ki jo je treba dodati. |
| lebdi | f | Plavajoča vrednost, ki jo je treba dodati. |
| int | jaz | Int vrednost, ki jo je treba dodati. |
| dolga | lng | Dolga vrednost, ki jo je treba dodati. |
| Objekt | Obj | Vrednost predmeta, ki jo je treba dodati. |
| Vrvica | str | Vrednost niza, ki jo je treba dodati. |
| StringBuffer | sb | StringBuffer, ki je pripet. |
| int | codePoint | Int vrednost kodne točke Unicode. |
Vrne:
| Metoda | Vračila |
|---|---|
| pripni (boolean b) | Vrne sklic na ta objekt. |
| pripni (znak c) | Vrne sklic na ta objekt. |
| pripni(char[] str) | Vrne sklic na ta objekt. |
| dodaj(char[] str, int offset, int len) | Vrne sklic na ta objekt. |
| pripni(CharSequence cs) | Vrne sklic na ta Appendable. |
| dodaj(CharSequence cs, int začetek, int konec) | Vrne sklic na ta objekt. |
| pripni (dvojni d) | Vrne sklic na ta objekt. |
| pripni (float f) | Vrne sklic na ta objekt. |
| pripni(int i) | Vrne sklic na ta objekt. |
| pripni (dolg lng) | Vrne sklic na ta objekt. |
| pripni (obj. predmeta) | Vrne sklic na ta objekt. |
| pripni (niz str) | Vrne sklic na ta objekt. |
| pripni (StringBuffer sb) | Vrne sklic na ta objekt. |
| appendCodePoint(int codePoint) | Vrne sklic na ta objekt. |
Izjeme:
| Metoda | Izjema |
|---|---|
| pripni (boolean b) | TO |
| pripni (znak c) | TO |
| pripni(char[] str) | TO |
| dodaj(char[] str, int offset, int len) | IndexOutOfBoundsException |
| pripni(CharSequence s) | TO |
| append(CharSequence s, int začetek, int konec) | IndexOutOfBoundsException |
| pripni (dvojni d) | TO |
| pripni (float f) | TO |
| pripni(int i) | TO |
| pripni (dolg lng) | TO |
| pripni (obj. predmeta) | TO |
| pripni (niz str) | TO |
| pripni (StringBuffer sb) | TO |
| appendCodePoint(int codePoint) | TO |
Združljivostna različica:
Java 1.5 in novejši
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
builderObject :value1 after append = value1 true new builderObject :value2 after append = value2 false
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
mysql ni enako
builderObject :value1 after append = value1 A new builderObject :value2 after append = value2 #
Primer metode 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); } } Preizkusite zdaj Izhod:
builderObject :string after append = string abc
Primer metode 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); } } Preizkusite zdaj Izhod:
builderObject :string builder after append = string builder bcdef
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
builderObject :string builder after append = string builder char sequence
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
builderObject :string builder after append = string builder sequ
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
java izbor sort
builder :string builder after append = string builder 12.65432101234568
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
builder :string builder after append = string builder 10.65
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
builder :append int after append = append int 100
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
builder :append long after append = append long 9223372036854775807
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
datoteko za spremembo linuxa
builder :append object after append = append object objectValue
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
builder :append string after append = append string my string
Primer metode Java StringBuilder append(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); } } Preizkusite zdaj Izhod:
builder :append stringBuffer after append = append stringBuffer bufferValue
Primer metode 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); } } Preizkusite zdaj Izhod:
after append : append codePoint1 @ append codePoint2 A