diff options
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/esodata/TapeChanger.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/esodata/TapeChanger.java | 98 |
1 files changed, 55 insertions, 43 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/esodata/TapeChanger.java b/BJC-Utils2/src/main/java/bjc/utils/esodata/TapeChanger.java index 64c0460..10764fe 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/esodata/TapeChanger.java +++ b/BJC-Utils2/src/main/java/bjc/utils/esodata/TapeChanger.java @@ -37,7 +37,7 @@ public class TapeChanger<T> implements Tape<T> { tapes.insertBefore(current); - for(Tape<T> tp : others) { + for (Tape<T> tp : others) { tapes.insertAfter(tp); tapes.right(); } @@ -53,7 +53,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public T item() { - if(currentTape == null) return null; + if (currentTape == null) + return null; return currentTape.item(); } @@ -66,7 +67,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public void item(T itm) { - if(currentTape == null) return; + if (currentTape == null) + return; currentTape.item(itm); } @@ -78,7 +80,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public int size() { - if(currentTape == null) return 0; + if (currentTape == null) + return 0; return currentTape.size(); } @@ -91,7 +94,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public void insertBefore(T itm) { - if(currentTape == null) return; + if (currentTape == null) + return; currentTape.insertBefore(itm); } @@ -101,7 +105,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public void insertAfter(T itm) { - if(currentTape == null) return; + if (currentTape == null) + return; currentTape.insertAfter(itm); } @@ -116,7 +121,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public T remove() { - if(currentTape == null) return null; + if (currentTape == null) + return null; return currentTape.remove(); } @@ -126,7 +132,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public void first() { - if(currentTape == null) return; + if (currentTape == null) + return; currentTape.first(); } @@ -136,7 +143,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public void last() { - if(currentTape == null) return; + if (currentTape == null) + return; currentTape.last(); } @@ -166,7 +174,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public boolean left(int amt) { - if(currentTape == null) return false; + if (currentTape == null) + return false; return currentTape.left(amt); } @@ -195,7 +204,8 @@ public class TapeChanger<T> implements Tape<T> { */ @Override public boolean right(int amt) { - if(currentTape == null) return false; + if (currentTape == null) + return false; return currentTape.right(amt); } @@ -209,16 +219,18 @@ public class TapeChanger<T> implements Tape<T> { * If the current tape is not double-sided, does nothing. */ public void flip() { - if(currentTape == null) return; + if (currentTape == null) + return; - if(currentTape.isDoubleSided()) { + if (currentTape.isDoubleSided()) { ((DoubleTape<T>) currentTape).flip(); } } @Override public boolean isDoubleSided() { - if(currentTape == null) return false; + if (currentTape == null) + return false; return currentTape.isDoubleSided(); } @@ -243,7 +255,7 @@ public class TapeChanger<T> implements Tape<T> { public boolean nextTape() { boolean succ = tapes.right(); - if(succ) { + if (succ) { currentTape = tapes.item(); } @@ -261,7 +273,7 @@ public class TapeChanger<T> implements Tape<T> { public boolean prevTape() { boolean succ = tapes.left(); - if(succ) { + if (succ) { currentTape = tapes.item(); } @@ -295,7 +307,8 @@ public class TapeChanger<T> implements Tape<T> { * @return The removed tape. */ public Tape<T> removeTape() { - if(currentTape == null) return null; + if (currentTape == null) + return null; Tape<T> tp = tapes.remove(); currentTape = tapes.item(); @@ -322,19 +335,6 @@ public class TapeChanger<T> implements Tape<T> { } @Override - public String toString() { - StringBuilder builder = new StringBuilder(); - - builder.append("TapeChanger [tapes="); - builder.append(tapes); - builder.append(", currentTape="); - builder.append(currentTape); - builder.append("]"); - - return builder.toString(); - } - - @Override public int hashCode() { final int prime = 31; int result = 1; @@ -345,20 +345,32 @@ public class TapeChanger<T> implements Tape<T> { @Override public boolean equals(Object obj) { - if(this == obj) return true; - if(obj == null) return false; - if(getClass() != obj.getClass()) return false; - + if (this == obj) + return true; + if (obj == null) + return false; + if (!(obj instanceof TapeChanger<?>)) + return false; + TapeChanger<?> other = (TapeChanger<?>) obj; - - if(currentTape == null) { - if(other.currentTape != null) return false; - } else if(!currentTape.equals(other.currentTape)) return false; - - if(tapes == null) { - if(other.tapes != null) return false; - } else if(!tapes.equals(other.tapes)) return false; - + + if (currentTape == null) { + if (other.currentTape != null) + return false; + } else if (!currentTape.equals(other.currentTape)) + return false; + + if (tapes == null) { + if (other.tapes != null) + return false; + } else if (!tapes.equals(other.tapes)) + return false; + return true; } + + @Override + public String toString() { + return String.format("TapeChanger [tapes=%s, currentTape='%s']", tapes, currentTape); + } } |