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ה לְצַרֵף() שיטת Java StringBuilder class משמשת להוספת ערך המחרוזת לרצף הנוכחי. קיימות שיטות append() עומסות שונות זמינות במחלקה StringBuilder. שיטות אלו נבדלות על בסיס הפרמטרים שלהן.

תחביר:

בוא נראה את התחביר השונה של שיטת StringBuilder append():

תן נגד זאב

 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) 

פָּרָמֶטֶר:

החזרות:

חריגים:

גרסת תאימות:

Java 1.5 ומעלה

דוגמה לשיטת 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); } } 

תְפוּקָה:

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

דוגמה לשיטת 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); } } 

תְפוּקָה:

mysql לא שווה

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

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builderObject :string after append = string abc 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builderObject :string builder after append = string builder bcdef 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builderObject :string builder after append = string builder char sequence 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builderObject :string builder after append = string builder sequ 

דוגמה לשיטת 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); } } 

תְפוּקָה:

דוגמה למערכת הפעלה של קוד פתוח היא

 builder :string builder after append = string builder 12.65432101234568 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builder :string builder after append = string builder 10.65 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builder :append int after append = append int 100 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builder :append long after append = append long 9223372036854775807 

דוגמה לשיטת 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); } } 

תְפוּקָה:

עבור לולאה java

 builder :append object after append = append object objectValue 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builder :append string after append = append string my string 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 builder :append stringBuffer after append = append stringBuffer bufferValue 

דוגמה לשיטת 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); } } 

תְפוּקָה:

 after append : append codePoint1 @ append codePoint2 A