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gruppe06-hufflepuff-projekt2-texteditor
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added Method paragraphExists 

changes in Classdiagram
This commit is contained in:
schrom01 2021-10-30 15:15:43 +02:00
parent daa403cac0
commit fae2728444
1 changed files with 11 additions and 3 deletions
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14
src/Text.java
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@ -25,6 +25,14 @@ public class Text {
} }
} }
/**
* Method to check if a specific Paragraph exists
* @param paragraphNumber to number of the paragraph which should be checked
* @return returns true if the paragraph exists
*/
private boolean paragraphExists(int paragraphNumber) {
return ((paragraphNumber > 0) && (paragraphNumber <= this.text.size()));
}
/** /**
* Method to add a paragraph at a specific position. * Method to add a paragraph at a specific position.
@ -33,7 +41,7 @@ public class Text {
* @return returns true if the given paragraph exists and is added successfully * @return returns true if the given paragraph exists and is added successfully
*/ */
public boolean add(int paragraphNumber, String text) { public boolean add(int paragraphNumber, String text) {
if(paragraphNumber > 0 && (paragraphNumber <= this.text.size())) { if(paragraphExists(paragraphNumber)) {
this.text.add((paragraphNumber - 1), text); this.text.add((paragraphNumber - 1), text);
return true; return true;
} }
@ -75,7 +83,7 @@ public class Text {
* @return returns true if the given paragraph exists and is changed successfully * @return returns true if the given paragraph exists and is changed successfully
*/ */
public boolean replace(int paragraphNumber, String oldChar, String newChar) { public boolean replace(int paragraphNumber, String oldChar, String newChar) {
if(paragraphNumber > 0 && (paragraphNumber <= this.text.size())) { if(paragraphExists(paragraphNumber)) {
text.set((paragraphNumber - 1), text.get(paragraphNumber - 1).replace(oldChar, newChar)); text.set((paragraphNumber - 1), text.get(paragraphNumber - 1).replace(oldChar, newChar));
return true; return true;
} }
@ -95,7 +103,7 @@ public class Text {
public boolean del(int paragraphNumber) { public boolean del(int paragraphNumber) {
if(paragraphNumber > 0 && (paragraphNumber <= this.text.size())) { if(paragraphExists(paragraphNumber)) {
//paragraph hier löschen. //paragraph hier löschen.
return true; return true;
} }